Once upon a time, you went to a florist for a bouquet. Now you can grab one next to the spinach, at the pharmacy counter, even by the chips at a gas station. As fresh flowers have spilled out of specialty shops and into everyday retail, their place in our lives - and who’s buying them - has changed fast.



Researchers at the <a href="https://www.caes.uga.edu/" target="_blank" rel="noreferrer noopener">University of Georgia</a> College of Agricultural and Environmental Sciences wanted to know what, exactly, is going on. 



They teamed up across horticulture and agricultural economics to look not just at what people buy, but why they buy it, how often, and what those habits reveal about the modern consumer.



<h2 class="wp-block-heading" id="h-flowers-move-beyond-florists">Flowers move beyond florists</h2>



Drawing on a nationally representative survey of more than 8,500 people, the team found remarkable variety rather than a single archetype. Using marketing-style cluster analysis, they identified 13 distinct kinds of flower buyers.



Some are the classic date-night crowd: heavy on roses, big on Valentine’s Day. Others show up once a year for anniversaries and otherwise keep their wallets shut. 



A growing slice is buying flowers solely for themselves - home-use-only shoppers who treat stems like candles or throw pillows, a mood boost for the living room. 



And then there’s the “everything” group: people who purchase for all kinds of occasions and tend to spend the most overall.



Ask people what flowers mean and the responses span the spectrum. Word clouds from open-ended answers lit up with “beauty” and “smell,” but also “expensive” and “waste.”



Even so, buyers describe tangible upsides. Those who’d purchased flowers in the past year were more likely to report feeling better at home and at work - <a href="https://www.earth.com/news/simple-and-self-guided-nature-program-quickly-improves-mood-and-reduces-stress/">improved mood</a>, less stress, higher morale. The effect was strongest among recent purchasers.



As agricultural economist Ben Campbell put it, “there’s a perceived benefit of buying flowers - whether it’s real or not. People feel they’re getting something valuable from the experience.”



<h2 class="wp-block-heading" id="h-covid-changed-how-we-buy-flowers">Covid changed how we buy flowers</h2>



Behind the scenes, the cut-flower supply chain is both global and intricate. Imports - especially roses from Colombia - still dominate U.S. shelves. But the domestic picture has shifted in surprising ways.



When <a href="https://www.earth.com/news/covid-19-lockdowns-weakened-our-immune-systems/">COVID-19</a> hit, weddings and funerals vanished overnight. Growers plowed under fields. Florists closed their doors. 



And then, stuck at home, people started buying flowers anyway - to brighten kitchen tables and Zoom backgrounds, to mark time when weeks blurred together. Grocery stores and even convenience stores leaned into the demand.



“It became almost like therapy,” said Julie Campbell, the study’s lead author and a horticulture professor. “The habit stuck around.”



That collective turn inward sparked new growth outdoors. From 2017 to 2022, open-field flower acreage in the U.S. more than doubled. 



Much of that expansion came from small and mid-sized farms growing stems that don’t ship well - zinnias, dahlias, snapdragons - varieties that explode with color but wilt on long-haul flights.



Rather than compete with mass-produced roses from the Andes, these growers staked out a complementary niche: seasonal, local, and often more diverse.



<h2 class="wp-block-heading" id="h-local-farms-find-their-niche">Local farms find their niche</h2>



Today’s bouquets are often a collage of origins. One sleeve might hold Ecuadorian roses, California ranunculus, and Georgia-grown <a href="https://www.earth.com/news/urban-wildflowers-may-be-harming-bees/">wildflowers</a>, all in the same mix.



Consumers seem comfortable with that blend, and many are learning to read seasonality the way they do with produce: peonies in late spring, <a href="https://www.earth.com/news/sunflower-family-tree-explains-evolution-of-flower-symmetry/">sunflowers</a> in midsummer, chrysanthemums in fall.



For domestic growers, that seasonality is an advantage. It allows them to sell what travels poorly and tell a fresher story - field to vase instead of farm to table. For retailers, it’s an opportunity to meet shoppers where they already are.



The UGA study suggests that people inclined to toss a bouquet in the cart also value other small home upgrades. In other words, flowers are converging with the broader “home as haven” mindset that accelerated during the pandemic and never really retreated.



<h2 class="wp-block-heading" id="h-flowers-are-no-longer-just-gifts">Flowers are no longer just gifts</h2>



If there’s one throughline in the data, it’s diversity of intent. Flowers are still gifts, of course, but self-purchase is no longer niche. 



The “everything” buyers - those who grab stems for birthdays, apologies, Tuesdays, and everything in between - anchor the market, yet the once-a-year romantics and the treat-yourself crowd matter too.



That mix is why bouquets now show up in so many retail formats. A pharmacy endcap might catch the anniversary buyer; a grocery display might tempt the self-care shopper who wants tulips with their tomatoes.



It also helps explain the emotional payoffs respondents described. <a href="https://www.earth.com/news/flower-quality-is-a-critical-driver-of-bee-abundance/">Fresh flowers</a> are a fast, visible change in a room and an affordable luxury compared to furniture or renovations. 



That hit of beauty, scent, and novelty can feel outsize relative to the spend, which reinforces repeat purchases.



<h2 class="wp-block-heading" id="h-where-the-industry-goes-next"><a></a>Where the industry goes next</h2>



Policy and logistics will continue to shape the landscape - trade agreements, air freight costs, and climate impacts all ripple into what appears in the bucket by the checkout. But the UGA team’s work points to a few practical implications now.



Retailers can segment more intelligently, tailoring assortments and messaging to different buyer types rather than assuming a single use case. 



Growers can lean into their strengths - distinctive, local, and seasonal - without trying to displace imports that excel at year-round volume. 



And marketers can speak to well-being without overpromising: flowers won’t solve life’s problems, but they routinely make spaces feel better, and people notice.



Perhaps the biggest takeaway is the simplest: Americans are still buying flowers - and not just to hand to someone else.



Whether it’s a dozen <a href="https://www.earth.com/news/why-do-delicate-roses-have-such-harsh-prickles/">roses</a> flown in from Colombia or a handful of dahlias clipped from a nearby farm, fresh stems have become an everyday indulgence. 



They sit by the sink, brighten a desk, bookend the produce aisle, and remind us, in small ways, why bringing a bit of the outside in still resonates.



The study is published in the journal <a href="https://journals.ashs.org/view/journals/horttech/35/3/article-p286.xml" target="_blank" rel="noreferrer noopener">HortTechnology</a>.



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Why more people are buying flowers for everyday therapy

Once upon a time, you went to a florist for a bouquet. Now you can grab one next to the spinach, at the pharmacy counter, even by the chips at a gas station. As fresh flowers have spilled out of specialty shops and into everyday retail, their place in our lives - and who’s buying them - has changed fast. Researchers at the University of Georgia College of Agricultural and Environmental Sciences wanted to know what, exactly, is going on. They teamed up across horticulture and agricultural...

A new study led by the <a href="https://www.ncsu.edu/">North Carolina State University</a> has found that, under severe global warming scenarios, the inventory of trees used for timber in the continental United States may decline by up to 23 percent by the end of the century. The largest losses are expected to occur in two of the leading timber regions in the country, both located in the South. While these findings show relatively modest impacts on forest product prices, they suggest larger impacts in terms of carbon storage in U.S. <a href="https://www.earth.com/news/diverse-forests-are-more-resilient-and-productive/">forests</a>.



“We already see some inventory decline at baseline in our analysis, but relative to that, you could lose, additionally, as much as 23 percent of the U.S. forest inventory,” said study lead author Justin Baker, an associate professor of Forestry and Environmental Resources at NC State. “That’s a pretty dramatic change in standing forests.”



The scientists used computer modeling to estimate how 94 tree species will grow under six climate change scenarios, while also considering the impact of two different economic scenarios on demand growth for forestry products.



“Many past studies show a pretty optimistic picture for forests under climate change because they see a big boost in forest growth from additional carbon dioxide in the atmosphere,” Baker explained. “The effect that carbon dioxide has on photosynthesis in some of those models tends to outweigh the losses you see from precipitation and temperature induced changes in forest productivity and tree mortality. We have a model that is specific to individual tree species, and that allows us to better understand how climate factors influence growth rates and mortality.”



The analysis revealed that in several regions trees would grow more slowly and die faster in higher temperatures, particularly in Southeast and South-Central U.S. These regions may see tree inventories shrink by as much as 40 percent by 2095 compared to a baseline scenario. However, the researchers projected gains in tree supplies in the Rocky Mountains and Pacific Southwest regions, which will be driven by higher death rates of certain trees, leading to larger harvests initially, and followed by the growth of more heat-tolerant species (such as juniper trees). Overall, the total projected losses of U.S. tree inventory will likely range between three and 23 percent, with the value of lost carbon spiking up to $5.5 billion per year.



“We saw that the markets could be more resilient than the forests themselves. Your market effects may seem modest in terms of the effect it has on the consumers and producers, but those impacts are small compared to the carbon sequestration value that forests provide on an annual basis,” Baker warned.



“We don’t know a lot about how disturbance-related mortality or loss in tree productivity is going to bear out across the landscape as temperatures get warmer. We did our best to address a couple pieces of the puzzle with temperature and precipitation changes, and interactions between climate and market demand, but a lot more work needs to be done to get a good handle on climate change and forestry,” he concluded.



The study is published in the journal <a href="http://dx.doi.org/10.1016/j.forpol.2022.102898">Forest Policy and Economics</a>. &nbsp;



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By <a href="mailto:andrei.ionescu5891@gmail.com">Andrei Ionescu</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer



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Forest inventory will be greatly reduced by climate change

A new study led by the North Carolina State University...

The UK’s 14 Overseas Territories – many of them small, remote islands like St. Helena – are home to a variety of plant and animal species found nowhere else in the world. This makes them highly vulnerable to biological invasions that could lead to the extinction of their endemic species and irrevocably change their unique ecosystems.



Now, a team of researchers from the <a href="https://www.ceh.ac.uk/">UK Center for Ecology &amp; Hydrology</a> (UKCEH) and <a href="https://www.durham.ac.uk/homepage/">Durham University</a>, together with communities on the Overseas Territories, has assessed thousands of potential <a href="https://www.earth.com/news/managing-invasive-species-can-improve-climate-resilience/">invasive species</a> in order to estimate which are most likely to arrive and pose threats to the Territories within the next decade. Their findings could guide authorities, conservation ecologists, and the wider public to prevent these species from becoming established and causing ecological and economic damage.



“These Territories are exceptionally biodiverse. St Helena, for example, has over 400 invertebrates found nowhere else in world – it is simply unique. We hope that this study draws attention to these Overseas Territories and the inspiring people on them who are working so hard to protect their incredible wildlife and habitats,” said study senior author Helen Roy, an ecologist at UKCEH.



The analysis revealed that Gibraltar and St. Helena are threatened by biological invasion from the greatest number of species. While St. Helena is most at risk from invasion of plant species, the Falkland Islands and Tristan da Cunha are endangered by the most marine species. One of the species that could pose a threat to many of the Overseas Territories is the green mussel (Perna viridis), which can travel around the world on boats and ships, and form dense colonies in places where it establishes, outcompeting native species by reducing levels of phytoplankton. Other invasive species that pose a significant threat to many Territories include the little fire ant (Wasmannia auropunctata), the brown rat (Rattus norvegicus), and the mesquite tree (Prosopis juliflora).



“Preventing the introduction of invasive non-native species is key, because management of species that have established and spread is often extremely expensive and, in some cases, there are no options available. We hope that this list will help inform action, including supporting biosecurity activities, to safeguard the wildlife in these precious places,” Roy concluded.



The study is published in the journal <a href="http://dx.doi.org/10.1111/conl.12928">Conservation Letters</a>.



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By <a href="mailto:andrei.ionescu5891@gmail.com">Andrei Ionescu</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer



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UK territories threatened by a variety of invasive species

The UK’s 14 Overseas Territories – many of them small,...

Plants let their <a href="https://www.earth.com/news/invisible-colors-in-sunflowers-dont-only-attract-bees/">flowers</a> fade quickly for protection from detrimental microbes, according to a study led by experts at <a href="https://www.kyoto-u.ac.jp/en">Kyoto University</a>. Using field experiments and plant microbiome analyses, the researchers discovered that microbes growing on flowers can have a negative impact on fruit yields. As a defense mechanism, plants are quick to shed their flowers before the microbes increase in abundance.



"The results suggest that old flowers harbor microbial communities different from those at anthesis, and that the microbes abundant on old flowers negatively affect plant reproduction," wrote the study authors.&nbsp;



"Although it has received little attention, antagonistic microbes that rapidly proliferate on the flowers may have affected the evolution of various flower characteristics such as flower volatiles and life span."



Previously, researchers have investigated the tradeoff between energy that plants spend on producing and maintaining their flowers. Since flowers serve as a reproductive structure, it seems that plants would benefit from keeping them longer.&nbsp;



In an earlier study, the Kyoto team had looked at the mystery of why plants invest their energy to produce fragile flowers that wither quickly, rather than investing a bit more energy to produce flowers that are more durable.



“Interestingly, flower lifespan is negatively correlated with temperature; the hotter the environment where they bloom, the shorter the period a plant retains them. The phenomenon has been known for a long time,” said study co-author Shoko Sakai.



“Then, at some point, I came up with the hypothesis that antagonistic microbes, such as bacteria and fungi growing on flowers after the flower bud opens, must be the driver that shortens the lifespan of a flower. I doubted that it was a coincidence that microbes grow faster in higher temperatures.”



The team conducted field experiments to determine what microbial communities appear on flowers that live longer. The experts transferred microbes from old flowers of wild ginger to other wild ginger plants with new flowers that had just opened.



The experimental plants ultimately produced fewer fruits, despite the fact that there were no visible signs of infection or disease. When the researchers analyzed the microbiomes of the plants, they found several groups of bacteria that were increasing with time.&nbsp;



“So far, flower characteristics have mostly been studied in the context of their interactions with pollinators," said Sakai. "Recent studies have raised the question whether we have overlooked the roles of microbes in the studies of floral characteristics. For example, flower volatiles - which are often regarded as a primary pollinator attractant - can also function to suppress antagonistic microbes."



"The impacts of microbes on plant reproductive ecology may be more deeply embedded in the evolution of angiosperms than we have considered."



The study is published in the journal <a href="https://mbmg.pensoft.net/">Metabarcoding and Metagenomics</a>.



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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Plants shed their flowers quickly for protection

Plants let their flowers fade quickly for protection from detrimental...

Party,Table,Setting,With,Various,Veggie,Snacks,,Top,Down,View

In order to produce <a href="https://www.earth.com/news/food-production-affects-earths-natural-processes/">food</a> for humanity, we have appropriated roughly 50 percent of all habitable land and 70 percent of the available fresh water. We harvest aquatic food from nearly every river, lake and ocean, pollute watersheds and coastal seas with excess nutrients and generate around 30 percent of all anthropogenic greenhouse gases. Like it or not, feeding humans puts enormous environmental pressure on our planet.&nbsp;



In past studies, researchers have attempted to calculate the environmental impact of producing various different types of foods. By considering such factors as greenhouse gasses emitted during production, or the extent of water pollution, they have made some headway in quantifying the environmental consequences of food production per pound or kilogram. However, with industrialized farming and complex supply chains, it is difficult to assess the true environmental pressures of our global food system.&nbsp;



“Everyone eats food, and more and more people are paying attention to the planetary consequences of what they eat,” said <a href="https://www.ucsb.edu/">UC Santa Barbara</a> marine ecologist&nbsp;<a href="https://bren.ucsb.edu/people/ben-halpern">Ben Halpern</a>. However, as the world’s population increases decisions will need to be made about how to reduce the environmental footprint of food production in order to keep it sustainable, and this will necessitate a more comprehensive understanding of the various types of impacts. This proves to be a gargantuan task as there are so many different types of foods, produced in various ways and leading to a range of environmental pressures depending on the location of production.&nbsp;



“The individual choice of eight billion people adds up,” said Halpern, “and we need to know the overall impact of&nbsp;total&nbsp;food production – not just per pound – especially when setting food policy.”



In a new study, Halpern and colleagues at UC Santa Barbara’s&nbsp;<a href="https://www.nceas.ucsb.edu/">National Center for Ecological Analysis &amp; Synthesis (NCEAS)</a>&nbsp;have analyzed the greenhouse gas emissions, freshwater use, habitat disturbance and nutrient pollution (e.g., fertilizer runoff) generated by the production of 99 percent of all foods on Earth, including both aquatic and terrestrial foods. In addition, they combine these four pressures to map the estimated cumulative pressure, or ‘footprint,’ of food production globally, as well as in individual countries. Their research is published in the journal Nature Sustainability.



For Halpern, executive director at NCEAS and a professor at UCSB’s Bren School of Environmental Science &amp; Management, understanding the impacts of food production along with the local context of these impacts has been a longstanding interest. By taking detailed data about greenhouse gas emissions, freshwater use, habitat disturbance and nutrient pollution generated by 99 percent of total reported production of aquatic and terrestrial foods in 2017, and mapping those impacts at high resolution, the researchers were able to create a more nuanced geospatial picture of the pressures – the inputs, processes and outputs – of global food production.



It turns out that the impacts of food production vary between countries, depending on the farming methods used and on environmental conditions prevalent at each locality. This leads to the unexpected situation that five countries contribute almost half of all environmental pressures arising from food production; these are India, China, the United States, Brazil and Pakistan.



In addition, the large proportion of the environmental footprint arising from terrestrial food production is generated from agricultural activities that take place over only 10 percent of the Earth’s surface. This means that, when looking at the cumulative pressure per unit of food production (efficiency), there are enormous variations between countries and it is not correct to assume, as has been the case previously, that the environmental footprint of production for any one food is the same in all locations.&nbsp;



For example, thanks to technology that reduces greenhouse gases and increases yields, the United States – the world’s number one producer of soy – is more than twice as efficient as India (the fifth largest producer) at producing the crop, making American soy the more environmentally friendly choice.



“The environmental efficiency of producing a particular food type varies spatially, such that rankings of foods by efficiency differ sharply among countries, and this matters for guiding which foods we eat and from where,” said&nbsp;<a href="https://www.eemb.ucsb.edu/people/faculty/froehlich">Halley Froehlich</a>, assistant professor in environmental studies at UCSB and a co-author of the study.



The research also uncovers connections between land and sea that get missed when looking only at one or the other, and that result in significant environmental impacts. In some countries, raising pigs and chicken gives rise to an ocean footprint because they are fed meal made from marine fish such as herrings, anchovies and sardines. The converse is true for mariculture farms that make use of crop-based feeds and thus extend the environmental pressure caused by fish farms onto the land.



Assessing cumulative pressures can bring to light results that could not have been predicted by examining individual pressures alone. For instance, while raising cattle uses by far the most land for grazing, farming pigs produces a lot of pollution and uses more water. When comparing the two types of food production, the cumulative environmental pressures end up being slightly greater when raising pigs than when raising cattle. Measured by cumulative pressures, the five foods with the most severe environmental impacts are pigs, cows, rice, wheat and oil crops.



It is crucial to consider the cumulative effects on the environment of producing food to feed a growing global population. If we wish to reduce environmental degradation while still ensuring food security, we may need to rethink the way in which we produce food in general, say the researchers. In some cases, farming might need to improve efficiency; in other cases, consumers might need to change their food choices. Understanding the different environmental costs of food production in different countries will help to steer consumption towards lower-impact foods and ultimately to restructuring the food system such that we will be able to feed humanity in a sustainable manner.&nbsp;



“We need this comprehensive information to make more accurate decisions about what we eat,” said Halpern, who modified his own food choices based on the results of this study.



“I became a pescatarian years ago because of wanting to reduce the environmental footprint of what I eat,” he said. “But then I thought, I’m a scientist, I should really use science to inform my decisions about what I eat. That’s actually why I started this research project. And now that we have the results, I see that from an environmental perspective, chicken is actually better than some seafood. And so I’ve shifted my diet to start including chicken again, while eliminating some high-pressure seafoods like bottom-trawl caught cod and haddock. I am actually eating my words.”



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By <a href="mailto:bosman@truewan.co.za">Alison Bosman</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer



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Our dietary choices have enormous environmental impacts

In order to produce food for humanity, we have appropriated...

Plants in the mint family are rich in chemical molecules that give distinctive scents and flavors to their leaves. The mint family (Lamiaceae) is the sixth largest family of flowering plants and includes many familiar species, apart from mint itself, such as basil, rosemary, peppermint, lavender, sage and coleus. The aromatic and flavorful compounds produced by these plants function to attract <a href="https://www.earth.com/news/gardeners-can-make-small-changes-to-benefit-pollinators/">pollinators</a> and to deter herbivores, and they have been essential in driving the diversification of this large group of plants.



Researchers from <a href="https://msu.edu/">Michigan State University</a> have been studying the great variety of metabolites found in mint plants for many years, and have recently focused on a group of molecules called terpenoids. These compounds are essential in protecting the plants from predators and pathogens, and are also common ingredients in green and sustainable agrochemicals, antioxidants, cosmetics and fragrances.&nbsp;



“People easily recognize members of the mint family for their specialized metabolites,” said Dr. James K. Billman, Jr. and Professor&nbsp;<a href="https://biomolecular.natsci.msu.edu/faculty/alphabetical-directory/bjoern-hamberger/">Björn Hamberger</a>. “Metabolites are an efficient way for plants to defend themselves because they can’t run away.”



Professor Hamberger worked previously with Robin Buell, a former MSU genomics researcher, who sequenced the genomes from several different species in the mint family. This collaboration with Buell’s team led graduate students Abigail Bryson and Emily Lanier to discover how several genomes of the mint family have evolved over the past 60 million to 70 million years and how their chemistries have emerged.&nbsp;



“Over millions of years, plants have adapted and evolved for their particular niches where they thrive, and that means that these chemistries are diverse and have clearly adjusted to their environment,” said Professor Hamberger. “So, we try to identify and discover pathways to these specialized metabolites that plants make.”



According to the researchers, this family of plants have diversified the natural characteristics of their metabolites throughout their evolution, leading to the great variety of different chemical compounds found in today’s members of the group. In order to understand the mechanisms by which such diversity has evolved, the researchers took an interdisciplinary approach and analyzed the genetic and chemical pathways involved in terpenoid biosynthesis in different species in the mint family.



Bryson identified the genomic framework of terpenoid biosynthesis, and Lanier analyzed the chemical pathways. Together, Lanier and Bryson discovered something highly unusual in the beautyberry (Callicarpa americana) genome from the mint family. It has a large biosynthetic gene cluster (BGC), which is a group of genes, located close together in the genome, that are involved in the same metabolic pathways. Additionally, Bryson and Lanier found variants of this BGC in six other species in the mint family.



“We are learning that the physical location of genes within the genome is important,” Bryson said. “It can drive evolution of specialized metabolic pathways in the plant, leading to a vast diversity of interesting natural plant compounds.”&nbsp;



The BGC cluster of the beautyberry plant contains genes that encode two distinct terpenoid pathways. The team found these terpenoids accumulate in various parts of the plant, such as the leaves and roots, and may play distinct roles in helping the plant to adapt to its environment.&nbsp;



“It’s the same base molecule, but each species is making its own version and modifying it in different ways to fit their survival needs,” Lanier said.&nbsp;



Professor Hamberger describes it like a recipe that everyone has a copy of and changes to suit their requirements and preferences.&nbsp;



The researchers hope that a better understanding of the ways in which these compounds have been modified by different plant species will lead to potential future applications that could include new medicines and pesticides. We already use some of the compounds as flavor additives, fragrances, and anti-herbivory agents.



Previous research has led to unique medical uses for mint plants. For example, Indian Coleus can be used as a natural treatment for glaucoma and Texas sage is a natural antimicrobial that is effective against tuberculosis. The new molecular adaptations that have been found in the current study open the door for future applications of natural plant products from the mint family.



“Our team has been excited about the opportunities within the mint family,” said Professor Hamberger. “Those mint enzymes, as in the American beautyberry plant, give us the ability to make plant-natural products in the lab, including – hopefully in the future – natural good-smelling mosquito repellants.”



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By <a href="mailto:bosman@truewan.co.za">Alison Bosman</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer



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Plants in the mint family may help produce new medicines

Plants in the mint family are rich in chemical molecules...

Expanding global seaweed farming could address food security, biodiversity loss and climate change challenges. A new study from the <a href="https://www.uq.edu.au/">University of Queensland</a> finds that seaweed offers a sustainable alternative to meet the world’s growing need for food and materials.



“Seaweed has great commercial and environmental potential as a nutritious food and a building block for commercial products including animal feed, plastics, fibres, diesel and ethanol,” said study lead author Scott Spillias.



“Our study found that expanding seaweed farming could help reduce demand for terrestrial crops and reduce global agricultural greenhouse gas emissions (GHG) by up to 2.6 billion tons of CO2-equivalent per year.”



The study mapped the potential of farming 34 commercially important seaweed species using the Global Biosphere Management Model. Environmental benefits of a range of scenarios were estimated based on land-use changes, GHG emissions, water and fertilizer use, and projected changes in species presence by 2050.



One scenario that substituted 10 percent of human diets with seaweed products could prevent the development of 110 million hectares of land for farming.&nbsp;



The researchers also identified the availability of millions of hectares of ocean where farming could be developed. These were mostly found within global exclusive economic zones - EEZ’s. EEZ’s are an area of the sea in which a sovereign state has rights regarding the exploration and use of marine resources.



The largest share of suitable ocean for seaweed farming was found in the Indonesian EEZ, and the Australian EEZ showed the greatest potential and species diversity.&nbsp;



“The way I like to look at this is to think about ancestral versions of everyday crops - like corn and wheat - which were uninspiring, weedy things,” said Spillias.



“Through thousands of years of breeding we have developed the staple crops that underpin modern societies and seaweed could very well hold similar potential in the future.”



To avoid displacing agriculture problems from land to ocean, Professor Eve McDonald-Madden said farming seawood would have to be carried out with care.



“Our study points out what could be done to address some of the mounting problems of global sustainability facing us, but it can’t be implemented without exercising extreme caution."



This research is published in the journal <a href="http://dx.doi.org/10.1038/s41893-022-01043-y">Nature Sustainability</a>.



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By <a href="mailto:katherinebucko@gmail.com">Katherine Bucko</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer



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Seaweed farming could boost food security, yet preserve nature

Expanding global seaweed farming could address food security, biodiversity loss...

Wild <a href="https://www.earth.com/news/most-people-think-insects-will-become-a-sustainable-food-source/">insect</a> pollinators are critical to the formation of seeds and fruit in around 90 percent of flowering plant species, and 75 percent of crop species. Although bees are the best-documented of the insect pollinators, there are many other groups of insects that are also involved. These include flies, beetles, moths, butterflies, wasps and ants. The populations of these crucial organisms are in decline worldwide, mostly due to the activities of humans.&nbsp;



In response to this situation, the Swedish Society for Nature Conservation launched a campaign to encourage the public to create more favorable conditions for pollinators in their private gardens. The project, known as “Operation: Rädda bina” (“Operation: Save the bees”), ran between 2018 and 2021, and around 11,000 Swedes responded initially to the appeal. Researchers from <a href="https://www.lunduniversity.lu.se/">Lund University</a> have now evaluated the success of the measures undertaken by the citizen scientists in their own gardens.



People who responded to the campaign were asked to register pollinator-friendly interventions that they had carried out in their gardens and other green spaces. The campaign encouraged three different interventions: (i) establishing a flowering “garden meadow,” (ii) planting bee-friendly flowers in a garden, and (iii) setting up bee hotels. Those who registered an intervention then completed online questionnaires about their intervention and their perception of any changes in pollinator populations in their garden.&nbsp;



“We wanted to investigate measures that the public themselves chose to implement in their garden, and how these can be the most efficient," said study co-author Anna Persson.



Of the initial respondents, just over 3,200 completed the project. Of these, 809 established flowering meadows, 1,232 planted bee-friendly flowers in their gardens, and 1,210 established a bee hotel. Approximately 19 percent of meadows, 23 percent of plantings, and 20 percent of the bee hotels were situated in the 10 most populated cities/municipalities in Sweden.



When the citizen scientists had to assess the prevalence of pollinators in their gardens, after establishing their intervention, they were asked whether they saw “many,” “few,”,or “no” insects. Because this was rather a simple and subjective metric, the researchers also asked the respondents to count the exact number of pollinators they saw in the garden in a 10-minute period on a sunny day in July. This data was used to confirm the accuracy of the simpler abundance categories, namely many, few or none.&nbsp;&nbsp;



The results, published in the journal <a href="http://dx.doi.org/10.3389/frsc.2022.1099100">Frontiers in Sustainable Cities</a>, indicate that pollinators benefited most where flowering meadows were allowed to grow. This could be where a person decided not to mow a patch of grassland and let it rather grow tall with wild flowers, or where a meadow stood unused and untouched for several years. In both instances, the benefit was greater if the meadow was older and if there was a diversity of flowering species present.



People who planted bee-friendly flowers in their garden found the benefit for pollinators was greatest when the flowering plants were older and covered a large area. This is important, because people who initially record no benefit from their newly-planted flowers should not give up, but should continue with the knowledge that older, more established flower beds will bring the pollinators in time.&nbsp;



Bee hotels, in turn, tended to attract more inhabitants if they were located in flower-rich gardens, if they were older, and if the nest holes were no larger than one centimeter in diameter.



Anna Persson believes the results of the study are helpful when giving guidance to those who want to make their gardens attractive for pollinators.



“For example, we can show that it will pay off to create large and species-rich meadows and flower plantings, and that it is important not to give up after a few years, because the measures improve over time. This should be emphasized in future campaigns."



Persson also hopes that the results can inspire more people to adapt their own green space so that it becomes more favorable for insects. Gardens often cover about 30 percent of the land area in cities and towns, so garden owners, as a group, have the potential to contribute considerably to urban biodiversity.



The accuracy of citizen scientist accounts can sometimes be questioned, because the participants may have certain expectations about the results they will see.&nbsp;



“Our study could be affected by so-called ‘expectation bias,'" said Persson. “This means that people who have taken measures and created more species-rich gardens also expect to see more insects, and thus risk reporting too high a number.”



However, the researchers found that the actual counts of insects correlated well with what participants categorized as “many” or “few” insects. A total of 350 participants counted the insects they saw in their garden in a 10-minute period, and their responses helped to verify the accuracy of the dataset.



This study is particularly relevant since a third of Sweden’s bee species are currently considered to be endangered. The results show that steps taken by individual homeowners to make conditions in the garden more favorable to pollinators really do make a difference. This is encouraging, as pollinators are critical for functioning ecosystems and need all the help they can get at this stage.



“The situation for bees and other pollinators shows that measures to help them are important," said Karin Lexén, Secretary General of the Swedish Society for Nature Conservation. "It’s great that the campaign has attracted so much attention, and that citizen science can continue to contribute to new knowledge."



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By <a href="mailto:bosman@truewan.co.za">Alison Bosman</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer



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Gardeners can make small changes to benefit pollinators

Wild insect pollinators are critical to the formation of seeds...

Fantastic,Azure,Alpine,Lake,Champfer.,Unusual,And,Picturesque,Scene.,Location

A new study led by the <a href="https://www.sfu.ca/">Simon Frasier University</a> (SFU) has found that nutrients from salmon carcasses can significantly alter the growth and reproduction of plant species in the surrounding habitats, even causing some <a href="https://www.earth.com/news/sunflowers-use-an-internal-clock-to-bloom-at-optimal-times/">flowers</a> to grow larger and more plentiful. This is the first study documenting the connection between salmon and coastal plant growth and reproduction, while shedding light on how the impact of climate change on the rivers and streams traveled by salmon could help inform ecosystem planning and management.



During a three-year field study, the scientists experimentally added pink salmon carcasses into the estuary of a small river from British Columbia’s central coast, a region featuring a large meadow of grasses and wildflowers.&nbsp;



“Following our experiments, we found that some species of wildflower grew larger leaves where a salmon carcass was deposited, and in some years, some species grew larger flowers or produced more seeds,” reported study lead author Allison Dennert, a PhD student in Biology at SFU.



The researchers undertook similar experiments with drift seaweed rockweed, a plant that provides a different set of nutrients than salmon carcasses. In addition, they also experimented with a combination of salmon carcasses and rockweed – along with a control group – and examined their impact on four widespread wildflower species (silverweed, yarrow, Douglas’ aster, and common red paintbrush).



The experiments revealed that the addition of salmon carcasses led to larger leaves, especially in yarrow and common red paintbrush, along with a greater seed set in yarrow in the third year of the study.



“Understanding the interconnection between ecosystems is incredibly important to our knowledge of how to protect them,” said Dennert. “Currently, lands and waters are managed under separate provincial and federal jurisdictions. Scientifically and management-wise, we think of the land and sea as separate and unconnected entities. This work furthers the idea that ecosystems don’t exist in isolation, and that what happens in one can influence the other,” she concluded.



The study is published in the journal <a href="http://dx.doi.org/10.1098/rsos.221008">Royal Society Open Science</a>.



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By <a href="mailto:andrei.ionescu5891@gmail.com">Andrei Ionescu</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer



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Dead salmon can boost the growth of  wildflowers

A new study led by the Simon Frasier University (SFU)...

Concern for the status of the Amazon rainforest usually centers on understanding the extent of <a href="https://www.earth.com/news/the-covid-19-pandemic-did-not-reduce-deforestation/">deforestation</a> and its devastating consequences. But this may only be part of the story. The authors of a new review article, published in the journal <a href="http://dx.doi.org/10.1126/science.abp8622">Science</a>, say that about 2.5 million square kilometers of the Amazon (that is almost 40 percent of remaining rainforest), is degraded by the impacts of human activities.&nbsp;



The review used data from previously published scientific studies and satellite imagery to identify the changes in the Amazon region between 2001 and 2018. Thirty-five researchers were involved, from institutions&nbsp;such as Brazil’s University of Campinas (Unicamp), the Amazon Environmental Research&nbsp;Institute (IPAM), National Institute for Space Research (INPE), and UK’s Lancaster&nbsp;University. The work is the result of the AIMES (Analysis, Integration and Modelling of the Earth&nbsp;System) project, linked to the <a href="https://futureearth.org/">Future Earth</a> international initiative, which brings together&nbsp;scientists and researchers who study sustainability.



The authors define the concept of degradation as transient or&nbsp;long-term changes in forest conditions, caused by humans. Degradation is different from&nbsp;deforestation, where the forest is removed altogether and a new land use, such as agriculture,&nbsp;is established in its place. Although highly degraded forests can lose almost all of the trees and animal species,&nbsp;the land use itself does not change.



In addition, the activities that lead to the degradation of forests can also generate carbon emissions; these are equivalent to or even greater than the emissions arising from deforestation itself. The authors identify four key disturbances driving forest degradation: forest fires, edge effects (changes that occur in forests adjacent to deforested areas), selective logging (such as illegal logging) and extreme drought. They also consider the effects of other, less well-studied factors such as habitat fragmentation. Different forest areas can be affected by one or more of these disturbances.



“Despite uncertainty about the total effect of these disturbances, it is clear that their cumulative effect can be as important as deforestation, for carbon emissions and biodiversity loss,” said study co-author Jos Barlow, a professor of conservation science at Lancaster University.



The Amazon rainforest is a vital, yet vulnerable, major ecosystem on Earth. It provides crucial global ecosystem services that help maintain the planet’s carbon and water cycles, and is home to a staggering one-third of all known species. Modern agricultural and industrial practices, along with changes brought about by global warming, are degrading Amazonian environments at a very rapid pace.&nbsp;



The scientists assess that the degradation of the Amazon also has significant socioeconomic impacts, which should be further investigated in the future.



“Degradation benefits the few, but places important burdens on many,” said Dr. Rachel Carmenta, a co-author based at the University of East Anglia. “Few people profit from the degradation processes, yet many lose out across all dimensions of human well-being – including health, nutrition and the place attachments held for the forest landscapes where they live. Furthermore, many of these burdens are hidden at present; recognizing them will help enable better governance with social justice at the center.”



According to the researchers, these degradation factors will continue to produce carbon emissions that will affect the atmosphere, irrespective of whether deforestation is halted in the Amazon.&nbsp;



“Even in an optimistic scenario, when there is no more deforestation, the effects of climate change will see degradation of the forest continue, leading to further carbon emissions,” said Dr. David Lapola, leader of the study and researcher at the Centre for Meteorological and Climatic Research Applied to Agriculture at Unicamp. However, “… preventing the advance of deforestation remains vital, and could also allow more attention to be directed to other drivers of forest degradation.”



The authors propose creating a monitoring system for forest degradation, as well as prevention and curbing of illegal logging and controlling the use of fire. One suggestion is the concept of “smart forests” which, like the idea of “smart cities,” would use different types of technologies and sensors to collect useful data in order to improve the quality of the environment.



Dr. Lapola and colleagues emphasize that policies to halt deforestation will not necessarily address the factors that cause degradation to remaining forest. These policies must therefore be complemented by other approaches to curb the disturbances that degrade the remaining forest ecosystems.&nbsp;



“Public and private actions and policies to curb deforestation will not necessarily address degradation as well,” said Dr. Lapola. “It is necessary to invest in innovative strategies.”



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By <a href="mailto:bosman@truewan.co.za">Alison Bosman</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer



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Humans are destroying what's left of the Amazon

Concern for the status of the Amazon rainforest usually centers...

Recent studies have shown that the loss of species from plant communities can reduce ecosystem functions such as productivity, soil health, and carbon storage. This reduced functioning can destabilize ecosystems in the long term, disrupting their ability to provide essential services to our planet. However, according to a new study led by the <a href="https://www.uzh.ch/en.html">University of Zurich</a>, assessing such processes is only possible if experiments can be conducted for a sufficient length of time.



The scientists investigated the stability of plant biomass production over two decades in one of the longest grassland <a href="https://www.earth.com/news/biodiversity-loss-weakens-ecosystem-functioning/">biodiversity</a> experiments in the world, the <a href="http://the-jena-experiment.de/">Jena Experiment</a> in Germany. The analysis revealed that, after more than a decade, plant species in more diverse communities complemented each other in producing stable biomass.&nbsp;



By contrast, if plant diversity was low, community biomass varied more dramatically from year to year. Moreover, due to large fluctuations in species populations, species-rich communities had not yet stabilized during the first decade of the experiment.



“We now realize that the mechanisms by which diverse species communities maintain ecosystem functioning in the long term are continually developing even after two decades,” said study lead author Cameron Wagg, an expert in agroecology, biodiversity, and ecosystem functioning at the University of Zurich.



“These novel results fit with other recent findings of our research group, suggesting that over time evolutionary processes in diverse plant communities select the most ‘collaborative’ plant genotypes among the different species, thus increasing division of labor, community productivity and ecosystem stability,” added study senior author Bernhard Schmid, a biologist at the same university.&nbsp;



These findings suggest that, since ecosystem stability is crucial in the face of environmental perturbations, older and more diverse ecosystems should be valued and safeguarded in a rapidly changing world such as ours.



The study is published in the journal <a href="https://www.nature.com/articles/s41467-022-35189-2">Nature Communications</a>.



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By <a href="mailto:andrei.ionescu5891@gmail.com">Andrei Ionescu</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer



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Grassland ecosystem stability is driven by biodiversity

Recent studies have shown that the loss of species from...

It only takes one degree of warming to change a species, according to a new study led by the <a href="https://www.ntnu.edu/">Norwegian University of Science and Technology</a>. The researchers looked at the climate responses of individual species by analyzing natural history collections, which they say are an underexploited resource for long-term ecological research.



“Natural history collections can provide unique insight into a wide range of ecological responses over a period of time that is much greater than what most ecological monitoring programs manage. So the collections are an essential and invaluable source for ecological research over time," said study lead author Professor James D. M. Speed.



All of life on Earth is affected by the surrounding environment, so it is clear that climate change has an impact on species around the world. What is not as clear, however, is how each individual species will respond to specific changes in temperature.



“The climate affects the life cycle of species, the number of individuals of a species, the overall number of species and the composition and distribution of species in an area,” said Professor Speed.



To investigate how the climate affects individual species, the team set out to examine how plants and animals have been affected by temperature changes in Norway over a long period of time.



“We used museum collections that have been built up over 250 years to measure the ecological response to climate change in central Norway,” said Professor Speed. “We looked at a number of species, including vertebrates, invertebrates, plants and fungi."



Animal and plant specimens preserved in museum collections hold valuable insight into how we can expect climate change to progressively affect our world today.&nbsp;



“What these data and the objects in the museum collections have in common is that studying climate change was not one of their purposes when they were collected. Only now are we seeing that the collections are relevant and that we can use them for such a purpose,” said study co-author Tommy Prestø “It’s really interesting to be able to show that we can use the museum collections in new and innovative ways."



The results of the analysis clearly indicate that even a single degree of warming can induce major changes. The researchers found that:



<ul><li>The number of zooplankton decreases by almost 7,700 individuals per cubic meter of water per degree warmer in Jonsvatnet, a lake in Trondheim.</li><li>The number of nesting birds is decreasing by two fewer breeding territories per square kilometre per degree warmer in Budalen in Trøndelag county.</li><li>Flowering plants bloom earlier throughout Trøndelag, on average two days earlier per degree warmer.</li></ul>



The researchers also determined that when some species change, the life cycle of other species can change as well. “We can see a clear, regional connection with the climate,” said Professor Speed.



“For certain plant species, we’ve found that they’re flowering on average nine days earlier per century," said Presto. "This means that some of our plant species bloom three weeks earlier now than they did 250 years ago."



“But not everything changes with the climate. Some aspects of nature are more resilient. Overall, the distribution of species and species diversity stays stable over time. That surprised us,” said Professor Speed.



Fluctuations in the number of animals and species composition do not directly follow fluctuations in temperature, noted the researchers. A time period of 250 years can have both periods of warming and a stable climate, which means that species could have delayed responses to climate change.&nbsp;



The greatest immediate threat to plants and animals may be land-use changes such as deforestation. The International Nature Panel IPBES reports that land-use changes have had the largest relative negative impact on nature since 1970.



The study is published in the journal <a href="http://dx.doi.org/10.1002/ece3.9471">Ecology and Evolution</a>.



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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Just one degree of warming can change a species

It only takes one degree of warming to change a...

Tree leaves have highly different lifespans. For instance, monkey puzzle tree leaves can live for over two decades, and Picea growing in the Chinese Gongga Mountains can thrive for thousands of years, growing in harsh environments with leaves that last about 20 years. On the other hand, maple leaves last only a season, and blueberry leaves may survive for just three months.&nbsp;



According to a recent study published in the journal <a href="http://dx.doi.org/10.1126/sciadv.add5667">Science Advances</a>, these major differences are driven by the “economic” choices faced by different <a href="https://www.earth.com/news/in-tropical-forests-lightning-strikes-the-most-resilient-trees/">trees</a>.



“We already knew that conifers and other evergreen trees make longer-living leaves the closer they are to the poles,” said study lead author Han Wang, an expert in Plant Ecology at the <a href="https://www.tsinghua.edu.cn/en/">Tsinghua University</a> in Beijing. “Deciduous trees do the opposite. Their longest lasting leaves are found at the tropics.”



“And we knew that long-lived leaves tend to be tougher and thicker, and more expensive to build. Now, we have identified the major environmental factors at play, and summarized them in two equations. These leaf economic traits are fundamental to the carbon cycle and nutrient economy.”



The scientists tested their equations on data about thousands of tree species from hundreds of ecosystems worldwide. “Each species is essentially taking a punt on the best way to maximize carbon absorption,” said study co-author Ian Wright, a plant ecologist at the <a href="https://www.mq.edu.au/">Macquarie University</a> in Australia.



“Evergreen conifers growing in poor soil in areas with a long cold winter can only thrive if they make long term investments in their leaves. Whereas deciduous trees, like the maple, race to create new leaves and capture carbon in the summer sun before leaf-drop in autumn. The economically rational decision for a maple tree is to invest in fast growing, cheap but flimsy leaves.”



These findings have the potential of turning Ecology into a predictive science that will enable the construction of better, more accurate global and regional climate models, while allowing land managers to better model forests and other types of vegetation in order to predict how climate change will affect a variety of ecosystems, and farmers to better estimate crop yields and the impact of climate change on agriculture.



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By <a href="mailto:andrei.ionescu5891@gmail.com">Andrei Ionescu</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer



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Why do some leaves live longer than others?

Tree leaves have highly different lifespans. For instance, monkey puzzle...

<figure class="wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio"><div class="wp-block-embed__wrapper">
https://www.youtube.com/watch?v=2E0mn5mTvhQ
</div><figcaption class="wp-element-caption">'Death Star' moon Mimas conceals a 15-million-year-old ocean that scientists never expected.</figcaption></figure>



<h2 class="wp-block-heading" id="h-hidden-waters-beneath-ancient-craters">Hidden waters beneath ancient craters</h2>



Scientists have made a startling discovery that challenges everything we thought we knew about <a href="https://www.earth.com/news/saturn-moon-mimas-has-remarkably-young-ocean/" target="_blank" rel="noreferrer noopener">Saturn's moon Mimas</a>. Beneath the heavily cratered surface that earned it the nickname "Death Star" lies a global ocean that formed just 5 to 15 million years ago—a remarkably young age by cosmic standards.



<h2 class="wp-block-heading" id="h-cassini-data-reveals-orbital-secrets">Cassini data reveals orbital secrets</h2>



The discovery, led by Dr. Valéry Lainey of the <a href="https://observatoiredeparis.psl.eu/" target="_blank" rel="noreferrer noopener">Observatoire de Paris</a>, emerged from careful analysis of <a href="https://www.nasa.gov" target="_blank" rel="noreferrer noopener">NASA</a>'s Cassini spacecraft data. By studying subtle irregularities in Mimas's orbit around Saturn, researchers detected the gravitational signature of liquid water hidden 20 to 30 kilometers beneath the moon's icy shell.



<h2 class="wp-block-heading" id="h-an-unlikely-ocean-world">An unlikely ocean world</h2>



At only 400 kilometers in diameter, Mimas seemed like the least likely candidate to harbor a subsurface ocean. Unlike other ocean moons such as Europa and Enceladus, which show clear surface signs of internal activity, Mimas displays no obvious hints of the liquid water beneath its ancient, crater-scarred exterior.



"Mimas is a small moon, and its heavily cratered surface gave no hint of the hidden ocean beneath," explained Dr. Nick Cooper from <a href="https://www.qmul.ac.uk/" target="_blank" rel="noreferrer noopener">Queen Mary University of London</a>, a study co-author.



<h2 class="wp-block-heading" id="h-implications-for-astrobiology">Implications for astrobiology</h2>



The ocean's recent formation makes Mimas a prime target for studying how oceans develop and potentially support life. This discovery adds another member to the exclusive club of ocean worlds in our solar system, each offering unique insights into the conditions necessary for habitability.



The research, published in <a href="https://www.nature.com/" target="_blank" rel="noreferrer noopener">Nature</a> journal, demonstrates how advanced orbital analysis can reveal hidden features of celestial bodies, opening new possibilities for understanding ocean formation throughout the cosmos.



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Scientists discover unexpected young ocean on Saturn's cratered moon Mimas

https://www.youtube.com/watch?v=2E0mn5mTvhQ 'Death Star' moon Mimas conceals a 15-million-year-old ocean that...

<figure class="wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio"><div class="wp-block-embed__wrapper">
https://www.youtube.com/watch?v=3Y4eLFNYrKE
</div></figure>



On the unforgiving landscape of North Greenland, temperatures drop and sunlight barely penetrates through the polar winter. It was here, however, that an international team of scientists found <a href="https://www.earth.com/news/predatory-worms-were-terror-beasts-half-a-billion-years-ago/#google_vignette" target="_blank" rel="noreferrer noopener">evidence of sea monsters</a> that would change our understanding of ocean life in the past.



This video captures the discovery of Timorebestia fossils that had been hidden for more than 500 million years in the Sirius Passet formation. The "terror beasts," as they are called, are a hidden chapter in the evolutionary history of <a href="https://www.earth.com" target="_blank" rel="noreferrer noopener">Earth</a>, showing that sophisticated predator-prey interactions occurred much earlier than previously envisioned.



Dr. Jakob Vinther and his research team at the <a href="https://www.bristol.ac.uk/" target="_blank" rel="noreferrer noopener">University of Bristol</a>, in collaboration with researchers at the <a href="https://eng.kopri.re.kr/" target="_blank" rel="noreferrer noopener">Korean Polar Research Institute</a>, braved extreme weather conditions at 82.5 north latitude to locate these giant creatures. Using sophisticated electron microprobe analysis, they revealed the detailed anatomy of the animals, including their muscle and nerve tissues.



The find upsets the traditional timeline of sea predators. Although we've long appreciated that Cambrian oceans were at one time ruled by <a href="https://www.youtube.com/watch?v=jWI3-UgA3_o&amp;list=PL1QLQMW9MWDwpkFOnvgAmu7wT6rZmYqdJ&amp;index=19" target="_blank" rel="noreferrer noopener">arthropods</a>, these discoveries indicate that relatives of arrow worms were first to dominate the seas. These worms were building sophisticated food webs several million years before other predator groups arose.



Each fossil is a story of ancient hunger, with fossil stomach contents revealing these meter-long beasts dined on heavily armored arthropods regularly, cementing their place as the ocean's first apex predators.



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Worms dominated seas before dinosaurs

https://www.youtube.com/watch?v=3Y4eLFNYrKE On the unforgiving landscape of North Greenland, temperatures drop...

<figure class="wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio"><div class="wp-block-embed__wrapper">
https://www.youtube.com/watch?v=Ow3JH03PqEQ
</div><figcaption class="wp-element-caption">New York is the site of the world's oldest forest.</figcaption></figure>



<h2 class="wp-block-heading" id="h-385-million-year-old-trees-discovered">385-million-year-old trees discovered</h2>



Scientists have uncovered something extraordinary just two hours north of New York City. The <a href="https://www.earth.com/news/worlds-oldest-forest-discovered-close-to-new-york-city/" target="_blank" rel="noreferrer noopener">world's oldest forest</a>, dating back 385 million years, offers a window into how Earth's first complex forests shaped our planet's atmosphere.



Located near <a href="https://townofcairo.com/" target="_blank" rel="noreferrer noopener">Cairo, New York</a>, in Greene County, these weren't merely primitive plants struggling to survive. These were sophisticated trees with root systems remarkably similar to modern forests. This ancient woodland predates dinosaurs by 140 million years.



<h2 class="wp-block-heading" id="h-the-cairo-forest-discovery">The Cairo forest discovery</h2>



385 million years ago, upstate New York was a tropical paradise near the equator. Thanks to continental drift, this ancient forest has traveled thousands of miles to its current location.



The fossil forest sits in an abandoned quarry, roughly half the size of a football field. This represents just a slice of what was likely a massive forest system stretching from New York into Pennsylvania.



Charles Ver Straeten, curator of sedimentary rocks at the <a href="https://www.nysm.nysed.gov/" target="_blank" rel="noreferrer noopener">New York State Museum</a>, made the discovery in 2009. While scouting the former highway department property, his trained eye spotted wandering patterns in the stone that looked like marine features.



<h2 class="wp-block-heading" id="h-revolutionary-age-and-preservation">Revolutionary age and preservation</h2>



The site contains 385-million-year-old rocks with fossilized woody roots forming horizontal patterns up to 18 feet (5.5 meters) wide. As Christopher Berry, a paleobotanist at Cardiff University, explains: "You are walking through the roots of ancient trees."



This discovery pushes back advanced tree evolution by millions of years. The research, published in <a href="https://www.cell.com/current-biology/home" target="_blank" rel="noreferrer noopener">Current Biology</a> in December 2019, fundamentally changes our understanding of when complex forests first emerged.



Researchers believe a massive flood buried the forest floor, creating perfect fossilization conditions. Over millions of years, sediment hardened into rock, preserving these root patterns like nature's time capsule.



<h2 class="wp-block-heading" id="h-meet-archaeopteris-the-first-modern-tree">Meet Archaeopteris: the first modern tree</h2>



The star of this ancient forest is Archaeopteris – not to be confused with the feathered dinosaur Archaeopteryx. This tree was far older and more revolutionary.



William Stein from <a href="https://www.binghamton.edu/" target="_blank" rel="noreferrer noopener">Binghamton University</a> describes the roots as "strikingly modern, essentially what you'd see outside in my yard right now." These weren't simple root systems you'd expect from ancient plants.



Some fossilized roots are six inches (15 centimeters) in diameter, forming 36-foot-wide (11-meter) patterns. These giants grew up to 65 feet (20 meters) tall with five-foot-diameter (1.5-meter) trunks.



<h2 class="wp-block-heading" id="h-climate-changing-impact">Climate-changing impact</h2>



These trees fundamentally changed Earth's environment. Kevin Boyce, a Stanford University geoscientist, explains how their deep roots triggered "weathering," chemical reactions that pulled carbon dioxide from the atmosphere.



This process dropped atmospheric CO2 levels from 10-15 times higher than today to roughly modern concentrations. These ancient trees helped create atmospheric conditions that made complex life possible.



<h2 class="wp-block-heading" id="h-ancient-forest-ecosystem">Ancient forest ecosystem</h2>



The forest was remarkably diverse. Scientists identified Eospermatopteris, palm tree-like plants with short roots that reached 30 feet (9 meters) tall but lacked woody structure. The forest also housed cladoxylopsids and a mysterious third species still being studied.



All reproduced through spores rather than seeds – millions of years before seeds evolved. This tropical environment had no grass, flowers, or flying insects, just towering trees creating Earth's first complex forest canopy.



<h2 class="wp-block-heading" id="h-scientific-significance">Scientific significance</h2>



Before this finding, the Gilboa forest, located 25 miles (40 kilometers) away, held the "oldest forest" title. Cairo's trees are 2-3 million years older, showing that complex forest ecosystems developed much faster than scientists believed possible.



Patricia Gensel, a <a href="https://www.unc.edu/" target="_blank" rel="noreferrer noopener">University of North Carolina</a> paleobotanist, notes: "The size of those root systems is really changing the picture. Even 20 years ago, researchers assumed trees with such complex root systems didn't evolve so early."



The Cairo site presents three unique root systems, suggesting Devonian period forests were diverse ecosystems with different trees occupying different environmental niches, much like today's forests.



<h2 class="wp-block-heading" id="h-modern-preservation-efforts">Modern preservation efforts</h2>



In 2022, New York State Senator Michelle Hinchey secured a $170,000 grant for the town of Cairo to construct specialized fencing around the fossil forest site. The town plans to conduct a feasibility study exploring the possibility of creating an educational center and working lab on-site.



Joe Hasenkopf, chair of the Cairo Planning Board, hopes to partner with educational institutions to create a research facility serving scientists, students, and the public.



<h2 class="wp-block-heading" id="h-lessons-for-today-s-climate">Lessons for today's climate</h2>



Why does a 385-million-year-old forest matter today? It shows how dramatically forests can change Earth's climate. These ancient woodlands created the atmospheric conditions supporting complex life.



Understanding how prehistoric forests transformed the planet helps us appreciate modern forests' critical role in addressing climate change. Forests remain Earth's most effective carbon capture systems.



These prehistoric trees changed Earth's atmosphere by pulling massive amounts of carbon dioxide from the air. As we face modern climate challenges, this ancient forest reminds us of trees' incredible power to transform our planet's environment.



The next time you walk through a forest, remember you're experiencing an ecosystem whose blueprint was established 385 million years ago in upstate New York. These ancient pioneers didn't just survive – they thrived and changed the world forever.



The full study was published in the journal Current Biology.



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Earth's oldest forest found in the United States

https://www.youtube.com/watch?v=Ow3JH03PqEQ New York is the site of the world's oldest...

<figure class="wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio"><div class="wp-block-embed__wrapper">
https://www.youtube.com/watch?v=prrq8Ql81zk
</div><figcaption class="wp-element-caption">Acid rain and a crisis solved.</figcaption></figure>



<h2 class="wp-block-heading" id="h-why-don-t-we-ever-hear-about-acid-rain-anymore-the-environmental-crisis-that-was-solved">Why don't we ever hear about "acid rain" anymore? The environmental crisis that was solved</h2>



Remember the 1980s when acid rain dominated headlines? Dire warnings about rain eating buildings, killing fish, and destroying forests filled every news cycle. Then, almost like magic, acid rain vanished from public discourse. What happened? Did we actually solve one of the late 20th century's most pressing environmental challenges?



The answer might surprise you. Unlike many environmental issues that drag on indefinitely, acid rain represents one of modern history's most successful ecological recovery stories. It's a tale of science, politics, and technology working together to tackle what seemed impossible.



<h2 class="wp-block-heading">What was acid rain?</h2>



Acid rain isn't regular rain having a bad day – it's precipitation that became significantly more acidic due to air pollution. When power plants, factories, and vehicles burn fossil fuels, they release sulfur dioxide (SO2) and nitrogen oxides (NOx) into the atmosphere.



<h2 class="wp-block-heading">The science behind it</h2>



Think of acid rain as nature's chemistry experiment gone wrong. These compounds react with water, oxygen, and other chemicals to form sulfuric and nitric acids. When mixed with water vapor in clouds, they create precipitation with dangerously low pH levels.



While clean rain has a pH of about 5.6, acid rain could drop as low as 4.2 to 4.4 – roughly as acidic as tomato juice or coffee. According to US Geological Survey documentation, Scottish chemist Angus Smith first coined "acid rain" in 1872, but it didn't become a household phrase until the 1960s and 1970s when Swedish scientist Svante Odén documented its devastating effects on Scandinavian lakes and European forests.



<h2 class="wp-block-heading">The crisis at its peak</h2>



During the height of public concern, environmental damage was both widespread and visible. This wasn't some abstract future threat – people could see destruction happening in real-time.



<h2 class="wp-block-heading">Environmental devastation</h2>



The most dramatic impacts were impossible to ignore. Research documented by the Adirondack Lakes Survey Corporation and the New York State Department of Environmental Conservation shows that in the Adirondack Mountains, more than 200 lakes became so acidic they couldn't support fish life. The Adirondack Council reports that 409 lakes once supported brook trout, but many lost their fish populations due to acid rain.



By 1976, when scientists cataloged all acidified lakes in the Adirondack Park, researchers found that half of the lakes over 2,000 feet above sea level had no fish, according to studies published in environmental journals. The acidification process worked like a slow-motion disaster. As acid rain fell into watersheds, it gradually lowered pH levels. Fish couldn't survive in acidic water, and their food sources died off too.



Trees at high elevations showed stress directly linked to acid rain. It weakened them by leaching nutrients and making them susceptible to disease. Historical records show Germany's Black Forest saw nearly half its trees damaged by the mid-1980s.



<h2 class="wp-block-heading">Economic impact</h2>



Acid rain wasn't just environmental – it was expensive. Acidic precipitation corroded infrastructure, buildings, and monuments. Historic stone structures deteriorated at accelerated rates. Tourism suffered as lakes became fishless and forests declined. EPA economic analyses from the period documented repair costs mounting into billions annually.



<h2 class="wp-block-heading">The solution: government action and technology</h2>



Transformation from crisis to success required unprecedented cooperation between governments, industries, and environmental groups.



<h2 class="wp-block-heading">The Clean Air Act of 1990</h2>



The turning point came with the Clean Air Act Amendments of 1990, signed by President George H.W. Bush. This represented a fundamentally new approach to environmental regulation, as documented in EPA historical records.



<h2 class="wp-block-heading">Cap-and-trade success</h2>



Instead of mandating specific technologies, the 1990 amendments introduced something revolutionary: a cap-and-trade system for sulfur dioxide emissions. EPA program documentation shows this market-based approach set overall limits but allowed companies to trade emission allowances.



The genius was harnessing market forces to find cost-effective pollution reduction. Companies reducing emissions cheaply could sell excess allowances to those facing higher costs. Research published in environmental economics journals and EPA progress reports shows this resulted in dramatic SO2 reduction at a fraction of projected costs.



<h2 class="wp-block-heading">Technology advances</h2>



Policy provided the framework, but technology made reductions possible. Studies in atmospheric science journals document the widespread adoption of flue gas desulfurization systems ("scrubbers") that removed sulfur dioxide before it reached the atmosphere. By the 2000s, new installations could remove over 95% of SO2 emissions, according to EPA technical reports.



The push coincided with cleaner energy development. Natural gas produces fewer sulfur compounds than coal. Wind and solar, emerging in the 1990s, captured growing market share, reducing reliance on high-sulfur coal.



<h2 class="wp-block-heading" id="h-why-we-don-t-hear-about-it-today">Why we don't hear about it today</h2>



Why did acid rain disappear from headlines? Simple: the problem was largely solved.



<h2 class="wp-block-heading">Success doesn't make news</h2>



There's an old journalism saying: "If it bleeds, it leads." Environmental success stories don't generate urgency like crisis reporting. Media attention shifted to other challenges: climate change, plastic pollution, and biodiversity loss. There's only so much environmental anxiety the public can absorb, and newer concerns replaced acid rain.



<h2 class="wp-block-heading">Mission accomplished</h2>



The primary reason is beautifully simple: interventions worked. EPA monitoring data shows sulfur dioxide emissions dropped over 90% since 1990. Academic research published in environmental science journals confirms pH levels in formerly affected areas returned closer to normal. This represents one of history's most dramatic environmental recoveries. Studies by the Adirondack Lakes Survey Corporation show fishless lakes now support healthy populations. Forests recovered, and building damage slowed dramatically.



<h2 class="wp-block-heading" id="h-is-it-really-gone">Is it really gone?</h2>



The crisis is largely resolved, but monitoring data shows the problem isn't completely eliminated – it's managed to acceptable levels. Some areas still experience occasional events during high pollution periods. International environmental research indicates that rapidly industrializing Asian countries face similar problems to what we experienced decades ago, though they're implementing successful strategies.



EPA research shows nitrogen oxide emissions proved more challenging than sulfur dioxide, coming from vehicles and mobile sources. Climate science studies suggest changing weather patterns add complexity to how acid rain forms and falls.



<h2 class="wp-block-heading">What this teaches us</h2>



The acid rain experience proves that seemingly intractable environmental problems can be solved with scientific understanding, political will, and technological innovation. Environmental monitoring data shows recovery speed was remarkable – within a decade, measurable improvements appeared in air quality and ecosystem health.



Success came from bipartisan support across party lines. Policy analysis studies show the market-based approach appealed to those preferring economic incentives while achieving environmental goals. This support created lasting policy surviving political changes.



<h2 class="wp-block-heading">Conclusion</h2>



Acid rain's disappearance from public consciousness represents environmental science's greatest success stories. Through effective regulation, technological innovation, and international cooperation, we transformed an overwhelming crisis into a manageable challenge.



Today's silence isn't because we forgot – it's because we solved it. The 1990 Clean Air Act, combined with technology and energy market changes, reduced acid rain emissions over 90%, according to comprehensive EPA data analysis.



This success offers hope for current challenges. It proves complex problems can be solved when science, policy, and technology work together. As we face climate change and plastic pollution, acid rain reminds us that dramatic positive change is possible.



Next time someone asks whether environmental regulations work, remember acid rain. It's proof that sometimes, we get it right.



<hr class="wp-block-separator has-alpha-channel-opacity"/>



Sources: This article draws from EPA official documentation and progress reports, peer-reviewed research published in environmental and atmospheric science journals, historical data from the Adirondack Lakes Survey Corporation, New York State Department of Environmental Conservation records, US Geological Survey publications, policy analysis studies, and environmental monitoring data collected over three decades.



<h2 class="wp-block-heading">Frequently Asked Questions</h2>



1. Is acid rain completely gone? No, but EPA monitoring shows it's reduced to manageable levels. US sulfur dioxide emissions dropped over 90% since 1990, making acid rain much less severe than the 1980s crisis.



2. How long did solving take? Environmental monitoring data shows significant improvements began within 5-10 years of 1990s emission controls. Full ecosystem recovery took longer – some areas need 20-30 years for complete recovery.



3. What made the solution successful? Clear scientific understanding, visible damage motivating action, bipartisan support, available technology, and innovative market-based policies like cap-and-trade.



4. Do other countries have acid rain problems? Yes, particularly rapidly industrializing Asian countries. However, international environmental research shows many implement similar successful control strategies.



5. Could acid rain return? Potentially, if regulations weaken or we return to high-sulfur coal without controls, though effects would take years to become severe according to environmental projections.



6. Can you recommend any teaching tools on the subject of "acid rain"? The United States Environmental Protection Agency produced a wonderful teacher's guide for ages 14 and under that you can find on the EPA website here: <a href="https://www.epa.gov/sites/default/files/2017-03/documents/teachersguide.pdf" target="_blank" rel="noreferrer noopener">https://www.epa.gov/sites/default/files/2017-03/documents/teachersguide.pdf</a>



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The environmental problem we actually solved

https://www.youtube.com/watch?v=prrq8Ql81zk Acid rain and a crisis solved. Why don't we...

Fresh,Radish,Harvest,On,Soil,In,Garden.

<figure class="wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio"><div class="wp-block-embed__wrapper">
https://youtu.be/Fi2OeEwuzRM?si=vTyd2m9FMmtyWkex
</div></figure>







Mid-July is an opportune time to kick-start a thriving fall garden, and this guide lays out the best vegetables and herbs to plant now for a fruitful autumn harvest. 



Fast-growing leafy greens such as spinach, lettuce, kale, and arugula perform especially well in the waning summer heat, with harvests beginning as soon as 30 days. 



These cool-season crops relish the transition into fall, offering repeated yields with cut-and-come-again methods.



Root vegetables like radishes, carrots, and beets also excel during this period. Radishes deliver satisfaction in under a month, while carrots and beets mature in about two months. Employing succession planting ensures a continuous stream of produce deep into the cooler months. 



For a boost of fresh flavor, herbs like cilantro, basil, dill, and chervil are excellent picks. These heat-loving varieties flourish in July’s warmth and are harvest-ready in about 30 days, especially when sown continuously.



Gardeners in zones 6 through 9 can benefit from planting bush beans and snap peas, which don’t require trellising and are ideal for compact plots. 



Maturing in 50–60 days, they’re a smart choice for quick, protein-rich harvests. For those in hotter regions, heat-tolerant crops such as okra and southern peas provide reliable yields and thrive in scorching conditions.



This guide emphasizes more than crop selection—it highlights the importance of timing, soil preparation, and ongoing sowing techniques. 



With thoughtful planning and attention to regional climate needs, even late-summer gardeners can enjoy fresh salads, hearty stews, and the satisfaction of a robust, homegrown harvest well into fall.



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What to plant in your garden in mid-July

https://youtu.be/Fi2OeEwuzRM?si=vTyd2m9FMmtyWkex Mid-July is an opportune time to kick-start a thriving...

Green,Ecoduct,Over,An,Empty,Highway,During,Sunset.

<figure class="wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio"><div class="wp-block-embed__wrapper">
https://youtu.be/XYgiPzmNBTU?si=eFYY7gPHU1JznLvU
</div></figure>



A new long-term study in Monkton, Vermont, reveals that wildlife tunnels significantly reduce amphibian road mortality during seasonal migrations. 



Frogs and salamanders often cross roads to reach breeding ponds each spring, but many are killed by vehicles. 



Researchers from the <a href="https://www.uvm.edu/" target="_blank" rel="noreferrer noopener">University of Vermont</a>, in collaboration with local citizens and the Vermont Agency of Natural Resources, installed two underpass tunnels in 2015. 



Over a 12-year monitoring period, they observed an 80.2% reduction in amphibian deaths, and up to 94% for non-climbing species like salamanders. 



The study used a before-after-control-impact design and documented more than 5,200 amphibians, highlighting the tunnels’ effectiveness even in nearby buffer zones.



Funded at $342,397 - far cheaper than wildlife crossings for large mammals - the project showcased the power of community-led conservation.



Local groups initiated the effort after observing mass amphibian deaths. Wildlife cameras later captured over 2,200 amphibians using a tunnel in just one spring, along with other species like raccoons and bobcats, indicating wider ecosystem benefits.



This marks the first peer-reviewed, long-term data set in the northeastern U.S. confirming amphibian-specific underpasses work. 



The study urges transportation departments to incorporate these designs into road planning and highlights how community action, thoughtful infrastructure, and persistence can make a real difference for biodiversity.



The full study was published in the <a href="https://linkinghub.elsevier.com/retrieve/pii/S1617138125000780" target="_blank" rel="noreferrer noopener">Journal for Nature Conservation</a>.



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Wildlife tunnels save millions of amphibians

https://youtu.be/XYgiPzmNBTU?si=eFYY7gPHU1JznLvU A new long-term study in Monkton, Vermont, reveals that...

Scientists are transforming chocolate into a functional food by infusing it with probiotics and prebiotics, aiming to create a treat that satisfies cravings while supporting gut health. 



The challenge lies in maintaining chocolate's beloved texture and flavor while adding health benefits.



<figure class="wp-block-embed aligncenter is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio"><div class="wp-block-embed__wrapper">
https://youtu.be/Ug657J67iEo?si=w96YjGMsg939LD_3
</div></figure>



Probiotics - beneficial microbes that balance gut bacteria and aid digestion - are typically fragile and can be destroyed by stomach acid or processing. 



Prebiotics act as food for these microbes, helping them thrive. Together, they form "synbiotics," a powerful health combination.



Researchers Smriti Gaur and Shubhi Singh from India's Jaypee Institute of Information Technology took an innovative approach, using natural prebiotics like corn and honey instead of complex processing methods. 



They created five chocolate varieties: a control and four synbiotic versions containing different combinations of prebiotics, probiotics (Lactobacillus strains), and flavor enhancers (cinnamon or orange).



Laboratory simulations of human digestion showed the probiotics remained viable for over five hours, suggesting they could survive long enough to benefit gut health.



Taste tests were positive, with researchers particularly enjoying the orange-flavored variety, describing it as having "vibrant citrus notes" complementing the "rich cocoa" with a "luxurious" texture.



This research represents just the beginning. With further refinement of strains, textures, and flavors, chocolate could evolve beyond mere indulgence to become a functional food that nourishes while it delights.



The study is published in the journal <a href="https://pubs.acs.org/doi/10.1021/acsfoodscitech.4c00741" target="_blank" rel="noreferrer noopener">ACS Food Science &amp; Technology</a>.

Is chocolate the next nutritional powerhouse?

Scientists are transforming chocolate into a functional food by infusing...

<div class="wp-block-sendtonews-playerselector">[sendtonews key="0ynNMYkMKa-2340414-12187" type="single"]</div>



Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Nushagak Bay, a large estuary in southwest Alaska. Nushagak runs mainly north to south and exits in Bristol Bay, a large body of water in the Bering Sea.



"The bay is primarily fed by the Nushagak River, which begins in the Alaska Range and flows southwest approximately 450 km. The bay is also fed by several additional rivers including the Wood, Igushik, Snake and Weary rivers," says ESA.



"The dark colors of the Nushagak River are most likely due to tannins or lignins (chemical substances found in plants). Tannins and lignins from roots, leaves, seeds, bark and soil can leach into the water and give it a brown or even black colour. The sediments then flow southwards where it is mixed with the bluer waters of the bay."



Video/ Image Credit: ESA



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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Nushagak Bay in southwest Alaska

[sendtonews key="0ynNMYkMKa-2340414-12187" type="single"] Today’s Video of the Day from the...

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Today's Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> (ACS) reveals that proteins on flu viruses are actually flexible, tilting and waving in a “breath-like” motion. According to the experts, these proteins could be used to better defend against the flu.



"The main antigenic targets of influenza virus are two surface glycoproteins, hemagglutinin (HA) and neuraminidase (NA). Whereas the structural and dynamical properties of both glycoproteins have been studied previously, the understanding of their plasticity in the whole-virion context is fragmented," wrote the researchers.



To investigate, the team conducted detailed simulations of the influenza A H1N1 virion, or the swine flu. The experts concluded that the visualizations show many new vulnerable states of flu viruses, which could improve future vaccines and antiviral drugs.



Video/ Image Credit: American Chemical Society&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Flu viruses are more flexible than expected

[sendtonews key="G9bUoxcjr4-2511624-12187" type="single"] Today's Video of the Day from the...

<div class="wp-block-sendtonews-playerselector">[sendtonews key="3upvlAaHgO-2256633-12187" type="single"]</div>



Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Lake Trasimeno, which is located west of Perugia in central Italy. It is the fourth largest lake in the country. While Trasimeno’s water level varies, it has a maximum depth of approximately six meters.&nbsp;



"In this Copernicus Sentinel-2 image, captured on 6 August 2022, the lake’s emerald green colour is likely due to the presence of phytoplankton. Streaks in the water, particularly visible in the west, indicate the presence of soil and sediments which have been stirred up by winds. Dark colored waters in the southern part of the lake indicate a presence of submerged and floating macrophytes (aquatic plants) as well as algae," says ESA.



"Surrounded by hills on three sides, Trasimeno is subject to heavy storms created by winds, especially from the north and west. There are three islets in the lake: Maggiore, Minore and Polvese (the largest). The lake’s shores are sparsely inhabited with only two popular villages: Castiglione del Lago and Passignano sul Trasimeno."



"Italy is experiencing its worst drought in 70 years which has affected drinking water supplies, hydroelectric power and agricultural production. High temperatures, hot winds and lack of rainfall are the main causes of drought in the Umbrian region which saw Lake Trasimeno’s drop 1.3 m, reaching the limit of the hydrometric zero in July 2022."



Video/Image Credit: ESA&nbsp;



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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Lake Trasimeno in Central Italy

[sendtonews key="3upvlAaHgO-2256633-12187" type="single"] Today’s Video of the Day from the...

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Today's Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> describes a new self-powered nanosensor that can instantly detect mercury contamination with the tap of a finger.&nbsp;



The oxidized form of mercury can be harmful when it is ingested through contaminated water or food. This makes it necessary for experts to develop sensors that can quickly and accurately detect the presence of mercury.&nbsp;



Zong-Hong Lin and colleagues have now created a triboelectric nanosensor (TENS) that can detect mercury by simply by touching a sample. According to the researchers, their TENS could serve as the basis for similar devices to safely and remotely monitor other pollutants.



Video Credit: American Chemical Society&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Detecting mercury contamination with the tap of a finger

[sendtonews key="LvS8v8bp9z-2564889-12187" type="single"] Today's Video of the Day from the...

<div class="wp-block-sendtonews-playerselector">[sendtonews key="X0f6OHYoI4-2310561-12187" type="single"]</div>



Today’s Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> explores the ability of salt to transform the way that foods and beverages taste. Salt is known to cover up undesirable flavors, such as bitterness in coffee or beer, but how exactly does sodium chloride change the taste of other compounds?



One previous study showed that, not only does salt suppress bitterness, but also enhances sweetness and sourness. Another study revealed that bitterness reduction by salt seems to be happening at the tongue receptor level as well as in the brain.&nbsp;



While it is known that salt taste is mediated by the presence of sodium channels in the form of taste buds, experts believe that there is also an unknown receptor responsible for how we taste salt that has not yet been identified.&nbsp;



Video Credit: ACS Reactions



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

How does salt makes things taste better?

[sendtonews key="X0f6OHYoI4-2310561-12187" type="single"] Today’s Video of the Day from the...

<div class="wp-block-sendtonews-playerselector">[sendtonews key="JRaP49ISmm-2357509-12187" type="single"]</div>



Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Santiago, the capital city of Chile. The city is located in the center of the Santiago Metropolitan Region, which has a population of about eight million people.&nbsp;



'The weather of Santiago resembles the Mediterranean climate with dry and warm summers with temperatures reaching up to 35°C (from October to March) and cool and humid winters that can drop to 0°C (from April to September)."



"The city lies in the centre of the country’s central valley around 80 km from the Pacific Ocean to the west and borders Argentina to the east. A tiny part of Argentina is visible in the top-right corner of the image where the mountain crest of the Andes Mountains acts as a divider between the two countries," says ESA.



Video/ Image Credit: ESA



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Santiago, Chile in South America

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Spiral,Galaxy,,Illustration,Of,Milky,Way

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Astronomers at <a href="https://www.jhu.edu/">Johns Hopkins University</a> have created an interactive map of the universe, including the actual position and real colors of 200,000 galaxies. The map allows the public to access data that was previously only available to scientists.



The map was developed using data collected by the Sloan Digital Sky Survey. For over two decades, a telescope in New Mexico was aimed at slightly different locations to capture the night sky.&nbsp;



"Growing up I was very inspired by astronomy pictures, stars, nebulae and galaxies, and now it's our time to create a new type of picture to inspire people," said map creator Brice Ménard, a professor at Johns Hopkins. "Astrophysicists around the world have been analyzing this data for years, leading to thousands of scientific papers and discoveries. But nobody took the time to create a map that is beautiful, scientifically accurate, and accessible to people who are not scientists. Our goal here is to show everybody what the universe really looks like."



"In this map, we are just a speck at the very bottom, just one pixel. And when I say we, I mean our galaxy, the Milky Way which has billions of stars and planets. We are used to seeing astronomical pictures showing one galaxy here, one galaxy there or perhaps a group of galaxies. But what this map shows is a very, very different scale."



"From this speck at the bottom, we are able to map out galaxies across the entire universe, and that says something about the power of science."



The <a href="https://mapoftheuniverse.net/">interactive map</a> is available online, where it can be downloaded for free.



Video Credit: Johns Hopkins&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Interactive map of the universe includes 200,000 galaxies

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Lesotho: Africa's "Kingdom in the Sky" Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features northwest Lesotho in South Africa.



According to ESA, Lesotho is the only nation in the world that lies completely above 1,000 m in elevation. The country is famous for its tall mountains and narrow valleys, and is known as Africa's "Kingdom in the Sky."



Out of a population of around two million people, about 80 percent live in rural areas. More than 75 percent of these people are engaged in <a href="https://www.earth.com/news/climate-change-will-have-a-global-impact-on-agriculture/">agriculture</a>, including rainfed cereal production and animal grazing.&nbsp;



ESA reports that the country’s agricultural system faces a growing number of issues, with climate-related vulnerabilities such as drought, floods and extreme temperatures occurring more frequently. 



Diamonds are amongst the minerals found in the mountains. Indeed, Lesotho can truly be called the Kingdom in the Sky. Beautiful, culturally rich, safe, affordable, and easily accessible from Durban and Johannesburg, mountainous Lesotho is a vastly underrated travel destination. the Kingdom of Lesotho (Sotho: 'Muso oa Lesotho) is an enclaved country in southern Africa. It is just over 30,000 km2 (11,583 sq mi) in size and has a population of around 2 million.



Video Credit: ESA&nbsp;&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer 



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Lesotho: Africa's "Kingdom in the Sky"

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Today's Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Dublin, the capital and largest city of Ireland. Beyond its pub culture, Dublin is known as a modern culinary destination and a UNESCO City of Literature.



"Dublin is located near the midpoint of Ireland’s east coast in the province of Leinster. The city, which covers an area of around 115 square kilometers, is bordered by the Dublin Mountains, a low mountain range to the south, and is surrounded by flat farmland to the north and west," says ESA.



"The city straddles the River Liffey, which rises in the Wicklow Mountains and flows around 80 kilometers eastwards through the city of Dublin, in which it is canalised and bordered with quays. It then empties into Dublin Bay, an arm of the Irish Sea."



Dublin has an abundance of green spaces, including one of the largest enclosed public parks in any European capital city. Phoenix Park, which was originally formed as a royal hunting park in the 1660s, includes 707 hectares of green space.



Video Credit: ESA&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The city of Dublin on Ireland's east coast

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Today's Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features the province of Zaragoza in northeast Spain. The image was captured by the Copernicus Sentinel-2 mission.



"Together with the provinces of Huesca and Teruel, Zaragoza formed the old kingdom of Aragon. Its capital, also called Zaragoza (not visible in this image) is home to around half of Aragon’s population," says ESA.



"The Ebro River can be seen winding its way through the province from west to east in this image. Between its source in the Cantabrian Mountains in the northwest and its delta on the Mediterranean coast, the Ebro River is fed by more than 200 tributaries as it flows 910 km across much of northern Spain."



Since rainfall is very scarce in this region, irrigation in the Ebro basin is critically important. In the valleys surrounding the Ebro River, many fields are used for growing crops such as corn, wheat, and barley.



Video/ Image Credit: ESA



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The province of Zaragoza in northeast Spain

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Today’s Video of the Day from <a href="https://earthobservatory.nasa.gov/">NASA Earth Observatory</a> reveals the evolution of the Columbia Glacier in southeastern Alaska. Columbia is among the fastest shrinking glaciers in the world, and the video documents its rapid retreat over the years.&nbsp;



Columbia Glacier is a large, multi-branched calving glacier that flows out of the Chugach Mountains to the Prince William Sound.&nbsp;



According to USGS, Columbia had a long history of stability prior to 1980, with a length 41 miles, and small, short-lived advances or retreats.



In the years since 1980, however, satellite images have captured Columbia’s alarming retreat. By using false-color images, scientists can distinguish between snow and ice, open water, vegetation, and rocky debris on the glacier’s surface.



The series of false-color images featured in today's video were acquired over the span of 35 years. You can see that by 2021, the glacier’s main branch had retreated about 15 miles from its initial position.



The Columbia Glacier has also lost more than 50 percent of its volume, mostly due to calving. <a href="https://www.earth.com/video/nasa-reveals-3d-visual-of-an-atmospheric-river/">NASA</a> reports that while climate change likely started the retreat, mechanical processes kept the disintegration going.



The NASA images are provided by Jesse Allen, Robert Simmon, Joshua Stevens, and Lauren Dauphin using data from Landsat satellites, from the U.S. Geological Survey, and data from MODIS on NASA’s Terra satellite. The structure of Columbia’s moraine played a large role in the stability of the glacier before 1980. 



Like other tidewater glaciers, the Columbia built up a moraine over time, and the mixture of ice and rock functioned like a dam keeping out the sea. It was supported on one end by the shoreline and by the underwater terminal moraine at the other.



Video Credit: NASA Earth Observatory/&nbsp; NASA’s Scientific Visualization Studio



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The rapid retreat of the Columbia Glacier

[sendtonews key="0879czfG3k-1785905-12187" type="single"] Today’s Video of the Day from NASA...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features the Pyrenees Mountains, which form a natural boundary between France and Spain in southwest Europe.



The mountain range is 430 kilometers in length. It stretches from the Mediterranean Sea on the east to the Atlantic Ocean on the west.



At an elevation of 3404 meters, Pico de Aneto is the highest mountain peak in the Pyrenees, and the third-highest peak in Spain. Pico de Aneto is located in the Posets-Maladeta Natural Park, which spans more than 82,000 acres.&nbsp;



"Geological studies have revealed that the Pyrenees Mountains have been around for longer than the Alps, with their sediments first deposited in coastal basins during the Paleozoic and Mesozoic eras," reports ESA.



"The entire mountain range formed due to the upwelling of large sedimentary rocks by the collision of the Iberian and the Eurasian plate around 100 to 150 million years ago, followed by intense erosion from ice and water."



The western Pyrenees receive more precipitation due to moisture blowing in from the Atlantic Ocean. The mountain range contains many lakes, several small glaciers, and some of the highest waterfalls in Europe.



Video &amp; Image Credit: ESA



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The Pyrenees Mountains in southwest Europe

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Earth,Like,Exoplanet,3d,Render

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes two exoplanets that are orbiting a star 218 light-years away. A team of researchers led by the University of Montreal has found evidence that these planets are "water worlds."



The experts used data from NASA’s Hubble and Spitzer Space Telescopes. They discovered that exoplanets Kepler-138 c and Kepler-138 could be composed largely of water.



"We previously thought that planets that were a bit larger than Earth were big balls of metal and rock, like scaled-up versions of Earth, and that's why we called them super-Earths," explained study co-author Björn Benneke.&nbsp;



"However, we have now shown that these two planets, Kepler-138 c and d, are quite different in nature and that a big fraction of their entire volume is likely composed of water. It is the best evidence yet for water worlds, a type of planet that was theorized by astronomers to exist for a long time."



Video Credit: NASA Goddard



Image Credit: NASA, ESA, and Leah Hustak (STScI)



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Two distant planets may be "water worlds"

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