When trees topple into peat bogs or riverbeds, a slow alchemy begins. Hemmed in by mud, deprived of oxygen, and nudged along by microbes, the trunks gradually darken, densify, and mineralize. Sometimes, centuries later, they emerge as prized “ancient buried wood” that resists rot and boasts a marble-like sheen.



An international group of materials scientists recently wondered: Could that natural upgrade be coaxed to happen on the lab bench - quickly, cleanly, and at industrial scale?



The answer is BioStrong Wood, a timber strengthened with <a href="https://www.earth.com/news/hundreds-of-fungi-species-are-threatened-with-extinction/">fungus</a> and heat, whose tensile strength now outmuscles common SAE 304 stainless steel while weighing far less.



The project was a collaboration between the <a href="https://www.ehu.eus/en/en-home" target="_blank" rel="noreferrer noopener">University of the Basque Country</a> (EHU), <a href="https://en.whu.edu.cn/" target="_blank" rel="noreferrer noopener">Wuhan University</a>, and the Chinese Academy of Sciences.



The outcome, the experts argue, is not merely a clever composite but a glimpse of circular, sustainable materials which could replace the non‑renewable and highly polluting materials on which our economy is based.



<h2 class="wp-block-heading" id="h-why-wood-still-matters">Why wood still matters</h2>



Humans have used wood for millennia, yet most high‑performance engineering still defaults to steel, aluminum, or petro‑derived plastics.



Wood’s natural drawbacks - porosity, moisture absorption, and inconsistency - confine its use to beams and boards, not precision-engineered parts.



However, study co-author Professor Erlantz Lizundia sees untapped potential: “Wood is one of the most accessible biological materials, but outside its conventional use, it is barely being explored for high‑performance applications.”&nbsp;



Taming flaws could let designers replace fossil-heavy materials with a climate-friendly, carbon-storing feedstock that grows on trees.



<h2 class="wp-block-heading" id="h-wood-uses-fungus-and-geology">Wood uses fungus and geology</h2>



Nature already offers a recipe. In ancient buried wood, modest heat and pressure, along with microbial enzymes, partially break down <a href="https://www.earth.com/news/researchers-create-antimicrobial-substances-using-lignin-and-plant-wastes/">lignin</a> - the amorphous polymer that cements cellulose fibers. 



This allows the remaining molecules to repolymerize into a tighter, hydrophobic network. The Basque-Chinese team accelerated that evolution in three deliberate steps:



<ol start="1" class="wp-block-list">
<li>Selective fungal digestion - Planks of fast‑growing poplar and radiata pine were inoculated with white‑rot fungi. Over several days the microbes chewed specific ether bonds in lignin, loosening the microstructure while leaving the strong cellulose framework largely intact.</li>



<li>Chemical tuning - A mild alkaline wash halted fungal growth and removed low‑molecular‑weight residues, setting the stage for new crosslinks.</li>



<li>Hot pressing under high pressure - Boards were stacked and compressed at temperatures above 356 °F (180 °C). Cell walls collapsed, voids vanished, and fragmented lignin pieces fused into fresh carbon–carbon bonds, welding the lumber into a dense, horn-like slab.</li>
</ol>



This hybrid bio‑thermo‑mechanical route preserves up to 85 percent of the original mass - far higher than acid‑delignified “super woods” - and requires little solvent or energy beyond the press cycle.



<h2 class="wp-block-heading" id="h-wood-withstands-extreme-stress">Wood withstands extreme stress</h2>



Mechanical trials show why the researchers are excited. BioStrong Wood survives tensile stresses above 530 MPa - edging out stainless steel’s typical 520 MPa - and absorbs over eleven times more energy before fracturing than raw wood.



Flexural tests reveal a threefold jump in bending strength. Thermal cycling from –321 °F (–196 °C) to 248 °F (120 °C) hardly alters its stiffness, and water contact angles near 140° keep moisture at bay. In accelerated weathering chambers, samples showed negligible swelling or <a href="https://www.earth.com/news/nasa-technology-can-detect-plant-diseases-from-above/">mildew</a>. 



Behind the numbers lies a reengineered microarchitecture. X‑ray diffraction indicates cellulose crystallinity rises during pressing, while scanning electron microscopy shows near‑complete elimination of pores.



Reformed lignin acts like a molecular epoxy, locking cellulose sheets together and sealing pathways for water or oxygen.



<h2 class="wp-block-heading" id="h-carbon-capture-in-every-plank">Carbon capture in every plank</h2>



Strength is only half the story; so is sustainability. Using standard life-cycle assessment protocols, the authors calculate that each 2.2 lbs of BioStrong Wood sequesters roughly 2.6 lbs of CO₂ net, even after accounting for energy, chemicals, and fungal cultivation.



The negative footprint contrasts starkly with steel (4.2 lbs CO₂ emitted per 2.2 lbs produced) or glass-fiber composites (~11 lbs CO₂ per 2.2 lbs).



Techno-economic analysis pegs potential production costs near ¥2 CNY (≈ US $0.30) per 2.2 lbs - dramatically cheaper than aerospace polymers and competitive with plywood.



“Our results show that it is possible to obtain materials with a very high mechanical performance and which are, in turn, economically viable and offer <a href="https://www.earth.com/news/carbon-capture-technology-faces-uncertainty-despite-heavy-investment/">carbon capture</a> capabilities,” noted Professor Lizundia.



<h2 class="wp-block-heading" id="h-future-uses-for-fungus-wood">Future uses for fungus wood</h2>



Early prototypes hint at diverse uses, from vehicle panels to sports equipment cores and impact-resistant phone cases. 



They could also serve as exposed beams with fossil-wood aesthetics or cryogenic insulation supports due to thermal-shock resistance.



Because the process accepts multiple softwood and hardwood species, regional mills could tap local forestry residues instead of importing steel rebar or petrochemical resin.



<h2 class="wp-block-heading" id="h-from-lab-to-lumberyard">From lab to lumberyard</h2>



Scaling will demand continuous‑press technology, rapid fungal bioreactors, and strict quality control to homogenize input lumber. Building codes require researchers to characterize fire behavior, often a stumbling block for dense woods.



End‑of‑life recycling pathways, perhaps via controlled pyrolysis to biochar, also need definition. 



The researchers are already testing other fungal strains and shorter incubation times to cut lead time from days to hours.



<h2 class="wp-block-heading" id="h-wood-joins-the-big-leagues">Wood joins the big leagues</h2>



The BioStrong Wood story demonstrates a broader shift. Engineers are revisiting biological feedstocks not just for novelty, but to replace emissions-heavy incumbents at the structural level.



Whether it is mycelium foams, bacterial cellulose films or now fungus toughened wood, the toolkit of renewable high‑performance materials including wood is expanding. 



This study shows that by letting nature handle part of the chemistry, scientists can leapfrog traditional limits of wood. That opens the door to steel‑class strength without the steel‑class carbon bill.



If trials succeed, pallet-bound planks could soon top <a href="https://www.earth.com/news/dozens-of-coastal-skyscrapers-in-miami-are-sinking/">skyscrapers</a> or rocket fairings. Even in advanced engineering, well-crafted wood can still compete with metal.



The study is published in the journal <a href="https://www.science.org/doi/10.1126/sciadv.ady0183" target="_blank" rel="noreferrer noopener">Science Advances</a>.



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Wood that's stronger than steel? A greener path for engineering

When trees topple into peat bogs or riverbeds, a slow alchemy begins. Hemmed in by mud, deprived of oxygen, and nudged along by microbes, the trunks gradually darken, densify, and mineralize. Sometimes, centuries later, they emerge as prized “ancient buried wood” that resists rot and boasts a marble-like sheen. An international group of materials scientists recently wondered: Could that natural upgrade be coaxed to happen on the lab bench - quickly, cleanly, and at industrial scale? The answer is BioStrong Wood, a timber strengthened with fungus and heat,...

A new study published in the <a href="https://www.sciencedirect.com/science/article/pii/S2211320721000415?via%3Dihub">International Journal for Parasitology: Drugs and Drug Resistance</a> has revealed that the hookworms infecting greyhound dogs in the United States have become resistant to all the drugs veterinarians used to kill them.&nbsp;



Hookworms are some of the most common <a href="https://www.earth.com/news/parasites-help-worker-ants-live-much-longer-lives/">parasites</a> infecting dogs and they can be transmitted to humans too. They live in the animals’ intestines, often causing weight loss, anemia, bloody stools, and lethargy. According to research led by the <a href="https://www.uga.edu/">University of Georgia</a>, these parasites have recently become resistant to all the types of drugs that veterinarians generally used to kill them.



A research team led by Professor Ray Kaplan analyzed fecal samples from greyhound adoption kennels, an active racing kennel, and three veterinary practices that cooperate with adoptions groups. Four out of every five greyhounds were found to be infected by hookworms. Even more alarming, Professor Kaplan and his colleagues discovered that the dogs still had high levels of infection even after they were treated with well-known medications that previously managed to kill these worms.



The researchers claim that in places where there is a high number of dogs simultaneously infected by hookworms, such as racing dog kennels and breeding farms, there is a high chance for the hookworms to mutate and evade dewormer medications. The more often the medications are used, the more tolerance the parasites will develop.



"There's a very committed greyhound adoption industry because they are lovely dogs. I used to own one. But as those dogs are adopted, the drug-resistant hookworms are going to show up in other pet dogs," said Professor Kaplan.&nbsp;



A possible breeding ground for drug-resistant hookworm outbreaks are dog parks. "Personally, I would not take my dog to a dog park. If your dog picks up these resistant hookworms, it's not as easy as just treating them with medication anymore. Until new types of drugs are available, taking your dog to a dog park has to be considered a risky activity," explained Professor Kaplan.



Luckily, scientists found that these multiple drug-resistant hookworms seem to be susceptible to emodepside, a dewormer that was previously used only for cats. However, this treatment can only be performed in veterinary clinics, since it requires expertise and careful supervision after administration. Moreover, it is not yet known how long hookworms will take to build mutations that could evade this treatment too.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;



---



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

Dog parasites have become resistant to medications

A new study published in the International Journal for Parasitology:...

It is notoriously difficult to determine the age of a lobster. In a new study, researchers at the <a href="https://www.uea.ac.uk/">University of East Anglia</a> (UEA) have managed to identify a way of accurately determining age based on modifications in the lobster’s DNA.



For decades, experts have pondered how old lobsters can get, with some estimates rising even to a century or more. However, scientists could not find reliable methods to determine their exact age. This has been a problem, since knowing how many individuals of particular ages are present in a given area is important in order for them to be sustainably harvested.



“Until now, a lobster's age has usually been estimated using its size - but this is inaccurate as individual lobsters grow at different rates,” explained Dr. Martin Taylor from UEA’s <a href="https://www.uea.ac.uk/about/school-of-biological-sciences">School of Biological Sciences</a>. 



“For a long time, it appeared that there was no accurate way to quantify a lobster’s age. Some research suggested that you could tell a lobsters age by counting the rings in parts of their eyestalks and stomach – a little like counting tree rings. But you can’t do that for a living lobster.”



Recently, UEA scientists, in collaboration with the <a href="https://www.nationallobsterhatchery.co.uk/">National Lobster Hatchery</a> and the <a href="https://www.cefas.co.uk/">Centre for Environment, Fisheries and Aquaculture Science</a> (CEFAS), have developed a new DNA technique&nbsp;that could solve this problem. By quantifying DNA changes that accumulate within lobsters as they age, accurate indications of their ages have been found.



“We identified a very strong relationship between age and DNA modifications, which allowed us to accurately estimate the ages of individual lobsters,” said Dr. Taylor. 



“Applying this method to wild lobsters predicted ages that generally aligned with minimum estimates of age based on size.&nbsp;Our method shows great promise as a tool for improved management of the European lobster where information regarding the age-structure of stocks is currently missing.”



According to Dr. Carly Daniels, head of production science and development at the National Lobster Hatchery, knowing lobsters’ precise ages will help fisheries, scientists and conservationists alike to understand, manage and conserve our vulnerable lobster stocks.



The study is published in the journal&nbsp;<a href="https://onlinelibrary.wiley.com/journal/17524571">Evolutionary Applications</a>.&nbsp;



---



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

DNA technique can help estimate the age of lobsters

It is notoriously difficult to determine the age of a...

Brazil gets two-thirds of its energy from hydropower and has numerous large hydropower storage reservoirs that are fed by perennial <a href="https://www.earth.com/news/more-than-half-of-the-worlds-rivers-run-dry-each-year/">rivers</a>. Although it is usually understood that the construction and operation of hydropower systems reduce the river flow downstream due to the increase in evaporation, a recent study suggests that in humid conditions, as found in parts of Brazil, hydropower&nbsp;<a href="https://www.sciencedirect.com/topics/engineering/reservoir-storage">storage reservoirs</a>&nbsp;actually contribute to increasing the flow of the river upstream of the reservoir.



“It is widely accepted that river flow impacts reservoir levels. This is true on a weekly and monthly scale. However, on an annual scale the level of the reservoirs actually has a greater effect on the inflow of the river in the southeast of Brazil,” explained study leader Julian Hunt, a researcher in the IIASA Energy, Climate, and Environment Program.



In fact, the study finds that large storage reservoirs in southeastern Brazil can double the flow of rivers if the reservoirs are full, when compared with the effect of empty reservoirs. This finding has significant implications for water and energy management in the region, which is currently experiencing a historic drought and associated energy crisis.&nbsp;



The researchers explain that humidity is high during the wet season in the south-eastern region of Brazil. This reduces evaporation from the surface of reservoirs but it also increases the chances of precipitation in the area because any additional evaporation from a large body of water (storage reservoir) adds significantly to the high moisture content of the environment. Therefore, the higher the hydropower reservoir level, the higher the precipitation and the larger will be the inflow of the associated river.&nbsp;



The researchers analyzed river flow into eight dammed reservoirs in the region, which is Brazil’s most important for the production of hydropower. They compared the natural inflow of the rivers prior to damming in 1970 with water flow today, during the wet and dry seasons.&nbsp;



The team then compared the dam reservoir levels at the end of the dry season (October), with the average inflow recorded at the start of the following wet season (November). The data was used in correlation analyses to understand the potential impact of the reservoir level on the incoming river flow.



The results show that the flow of the rivers into all dams increased by an average of 112% if the reservoir was full in October, compared to if the reservoir was empty.&nbsp;



The researchers conclude that hydropower storage reservoirs have a significant impact on river flow in this region of Brazil and that keeping them full will alleviate some of the effects of drought, including decreases in the production of energy and increases in the costs of food.



Additionally, the study authors recommend that in order to improve current conditions, the smaller reservoirs at the heads of inflowing rivers should be filled first, followed by the larger ones. They calculate that reservoir storage levels at the end of October should be 78 percent full and the hydropower plants in cascade should operate with a capacity factor of 50 percent.&nbsp;



The findings help to explain why the river flow in southeastern Brazil decreased by 60 percent within one year of the start of the drought in 2014. Reservoir levels were allowed to drop significantly at that time and this could have exacerbated the problem by reducing the flow of incoming rivers even further.&nbsp;&nbsp;



“We should realize that managing water, land and other resources is not just a way to adapt to a changing climate. It can also affect the climate itself,” said Hunt.



The study is published in the journal&nbsp;<a href="https://www.journals.elsevier.com/energy">Energy</a>.



---



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

Storing more water could alleviate Brazil’s food and energy crisis

Brazil gets two-thirds of its energy from hydropower and has...

A new <a href="https://www.biorxiv.org/content/10.1101/2021.09.14.460388v1">study</a> led by <a href="https://med.nyu.edu/">New York University Langone Health</a> has found that a certain genetic mutation is responsible for a profound anatomical change that Charles Darwin first recognized with immense puzzlement in the 19th century: the loss of tails in humans and <a href="https://www.earth.com/news/great-apes-politely-end-their-social-interactions/">apes</a>, which occurred roughly 25 million years ago.



For over half a billion years, our ancestord sprouted tails. Fish used them to swim through the Cambrian seas, and later on, primates managed to keep their balance while rushing from branch to branch in the Eocene jungles with the help of their tails.



Paleoanthropologists have found that the oldest known primates, dating back 66 million years, had full-fledged tails that were crucial for their locomotion. Although most of today’s living primates still have them, fossil records of apes had shown animals with no tails at all since about 20 million years ago. 



“This question - where’s my tail? - has been in my head since I was a kid,” said lead author Bo Xia, a doctoral student in stem cell biology at <a href="https://med.nyu.edu/our-community/about-us">N.Y.U. Grossman School of Medicine</a>. After a car accident in 2019, when he injured his coccyx (a set of vertebrae extending beyond the pelvis that scientists think it is a vestigial remain of a tail), Xia decided to investigate scientifically this puzzling absence in humans and other great apes.



Xia and his team investigated how tails form in the early stages of embryonic development and identified over 30 genes that play a fundamental role in these processes.&nbsp;



One of these genes, called TBXT, exhibited a significant mutation in humans and other tailless apes. The gene apparently emerged about 20 million years ago and caused apes to grow just a stump of a tail, or even to not grow one at all.



However, even if geneticists such as Xia and his colleagues begin to explain how our tails disappeared, they are still far from understanding why this happened. Since the first apes were larger than monkeys, they would have probably fallen off branches more frequently and with often fatal consequences. Thus, tail loss might have put them at a significant evolutionary disadvantage. Furthermore, the lack of tail brings a whole series of spinal cord defects that modern humans struggle with as well.&nbsp;



“It’s very confusing why they lost their tail,” said Gabrielle Russo, an evolutionary morphologist at <a href="https://www.stonybrook.edu/">Stony Brook University</a>, New York. “That’s the next outstanding question: What on earth would the advantage be?”



---



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

Genetic mutation may explain how humans lost their tails

A new study led by New York University Langone Health...

According to a new <a href="https://marine.copernicus.eu/news/ocean-state-report-5-summary-now-available">report</a> funded and published by the <a href="https://marine.copernicus.eu/">Copernicus Marine Service</a>, sea levels around the world are rising at an alarming rate due to climate change. Through ocean measurements, satellite observations, and computer modelling, a team of 150 scientists from 30 renowned European institutions reported annual sea-level rises of 0.12 inches, which are higher than any of those observed in the last century.&nbsp;



Sea level rise is mainly caused by the melting of Arctic sea ice. The scientists found that from 1979 to 2020, the size of the area of lost sea ice is equivalent to about six times the size of Germany.&nbsp;



“Even though the polar regions are remote we feel their losses because they disturb the oceans that surround us,” explained Andrew Shepherd, professor of Earth Observation at the <a href="https://www.leeds.ac.uk/">University of Leeds</a>. “Whether it's rising sea levels driving more frequent coastal flooding, or reduced sea ice cover altering global weather patterns, we are increasingly vulnerable to these changes.”&nbsp;



A clear example of what extreme events such phenomena could cause is the repeated flooding of Venice during the past few years, with water rising by more than 6 feet (1.89 meters).



In addition to rising sea levels, the report also addressed other dangers that the oceans are currently facing, including: extreme temperature variability; increases in salinity and acidification; nutrient pollution from land-based activities such as industry or farming; the forced migration of various species of marine animals due to habitat loss; and increased plant growth that leads to reduced oxygen levels and blocks the sunlight. All of these stressors can have severe effects on coastal environments and marine biodiversity.



According to Karina von Schuckmann, oceanographer at the Copernicus Marine Service, the oceans are fundamental for regulating the Earth’s climate and sustaining life.&nbsp;



“Accurate and timely monitoring and reporting is crucial for understanding the ocean so we can adapt to its changes,” said von Schuckmann.



“The Ocean State Report highlights the necessity of governance to help us all work together to reduce harmful effects and adapt to protect this most precious resource and its ecosystems.”



---



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

Sea levels are rising at an alarming rate

According to a new report funded and published by the...

Building on <a href="https://www.earth.com/news/mind-reading-technology-recreates-bird-song-from-brain-waves/">previous research</a> which used the bodies and brains of zebra finches as a proxy for humans, scientists say they can now predict a bird’s song by reading its <a href="https://www.earth.com/news/social-support-can-protect-your-brain-health/">brain</a> signals. Silicone chips are implanted into the brains of small male zebra finches, common pet store birds. Using data from the chips, the scientists can predict bird calls.



“Our work sets the stage for this larger goal," explained study lead author and PhD candidate Daril Brown. "We’re studying birdsong in a way that will help us get one step closer to engineering a brain machine interface for vocalization and communication.”



“Our motivation for exploring local field potentials was that most of the complementary human work for speech prostheses development has focused on these types of signals," said Vikash Gilja, who led the collaborative research.



"In this paper, we show that there are many similarities in this type of signaling between the zebra finch and humans, as well as other primates. With these signals we can start to decode the brain’s intent to generate speech."



"These forms of variation are important for us to test hypothetical speech prostheses, because a human doesn’t just repeat one sentence over and over again."



"It’s exciting that we found parallels in the brain signals that are being recorded and documented in human physiology studies to our study in songbirds.”



As of now, the technology reveals the vocalization that a bird will make before it sings. According to researcher Timothy Gentner, this is a stepping stone to a bigger breakthrough.



"In the longer term, we want to use the detailed knowledge we are gaining from the songbird brain to develop a communication prosthesis that can improve the quality of life for humans suffering a variety of illnesses and disorders,”



The research is published in the journal <a href="https://journals.plos.org/ploscompbiol/">PLos Computational Biology</a>.



---



By <a href="mailto:zachfitzner@yahoo.com">Zach Fitzner</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Scientists can predict bird calls based on brain signals

Building on previous research which used the bodies and brains...

Bats,Flying,On,Green,Background

Vampire bats are known to form long-term relationships by grooming each other and even sharing regurgitated blood meals while roosting in trees. These social bonds usually exist between related individuals but can also form between strangers in captive conditions. In these instances, cooperative <a href="https://www.earth.com/news/light-pollution-disrupts-flight-calling-behavior-of-thrushes/">behavior</a> can persist for years after the bats are released back into the wild.



To find out whether these social bonds extend beyond the roost, scientists&nbsp;Simon Ripperger and Gerald Carter of <a href="https://www.osu.edu/">The Ohio State University</a> in the USA and the <a href="https://stri.si.edu/">Smithsonian Tropical Research Institute</a> in Panama attached small proximity sensors to the backs of 50 female common vampire bats (Desmodus rotundus) to monitor their movements. The bats included 27 wild individuals and 23 that had been kept in captivity for two years before being released back into their original home roost on a cattle farm in Tolé, Panama.



The results showed that, although tagged bats did not usually leave the roost together, those that were socially bonded often met up while foraging far from the roost. Furthermore, females with many social partners at the roost also made contact with more partners while away foraging. 



The experts theorize that socially bonded bats may cooperate by sharing information about potential hosts, or the location of an open wound on which to feed, when they reunite during foraging trips. This would save time and reduce the effort required for a bat to find a host and prepare a wound site. 



Vampire bats produce several distinct types of calls and the authors suggest that ‘downward sweeping’ social calls that are used to identify partners and ‘friends’ in the roost may also be used to recognize these individuals while out foraging.&nbsp;



The researchers add, “How far does ‘friendship’ go? We show that social bonds of vampire bats are not restricted to grooming and food sharing at the roost, but bonded individuals even hunt together, highlighting the complexity of their social relationships.”



The findings of this research are published in the open-access journal <a href="https://journals.plos.org/plosbiology/">PLoS Biology</a>.



---



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

Vampire bats hunt for food with their friends

Vampire bats are known to form long-term relationships by grooming...

The Hell Creek Formation, a rock unit stretching across Montana, the Dakotas, and Wyoming, holds some of prehistory’s most enduring icons. Triceratops, duck billed <a href="https://www.earth.com/news/dinosaurs-were-already-in-trouble-before-extinction/">dinosaurs</a>, and Tyrannosaurus rex all roamed this region 66 million years ago. Now arid and dry, it was once a lush subtropical swampland, where some of the last dinosaurs lived out their days before the group’s extinction at the end of the Cretaceous.&nbsp;



Uncovering the diversity and ecology of Hell Creek attracts researchers near and far. This year, the <a href="https://www.burkemuseum.org/">UW Burke Museum of Natural History and Culture</a> has unearthed four dinosaur specimens, concluding a successful field season.&nbsp;



The four animals include an unidentified ostrich-like dinosaur, the shovel-billed Edmontosaurus, the three-horned Triceratops, and a possibly-new species of oviraptorid - a critter that would have somewhat resembled a modern cassowary, except with giant hand claws. While none of the specimens are complete, their discovery helps build a more complete picture of the Hell Creek ecosystem. To a paleontologist, every fossil holds potential research value.&nbsp;



The Triceratops earned the nickname “Flyby Trike,” as its bones were discovered by a nearby rancher who was flying his plane at the time. Though only thirty percent of the skull has been recovered, Flyby Trike can help researchers understand the life history of this charismatic fossil species. Dubbed a “grandparent trike” by lab manager Kelsi Abrams, it shows how this animal matured and entered senescence.&nbsp;



“The triangular bones along the frill, called ‘epi occipitals,’ are completely fused and almost unrecognizable on the specimen, as compared to the sharp, noticeable triangular shape seen in younger individuals," said Abrams. "In addition, the brow horn curves downwards as opposed to upwards, and this feature has been reported to be seen in older animals as well.”&nbsp;



Plant remains found among these larger vertebrates are also useful to scientists. “Plant fossil remains from this time period are crucial for our understanding of the wider ecosystem. Not only can plant material tell us what these dinosaurs were perhaps eating, but plants can more broadly tell us what their environment looked like,” said Paige Wilson, a UW graduate student.&nbsp;



“Each fossil that we collect helps us sharpen our views of the last dinosaur-dominated ecosystems and the first mammal-dominated ecosystems," said Gregory Wilson Mantilla, a Burke Museum curator.



The Hell Creek lies right below the K/Pg boundary, the demarcation between the extinction that heralded the end of the age of dinosaurs and the beginning of the age of mammals.



For now, these new finds are undergoing the laborious process of fossil preparation at the Burke Museum. As each scrap of dirt and rock falls off the bone, new data is waiting for paleontologists, both present and future, to examine.



---



By <a href="mailto:rugerpaleo@gmail.com">Alex Ruger</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Four new dinosaur specimens found at the Hell Creek Formation

The Hell Creek Formation, a rock unit stretching across Montana,...

The addition of <a href="https://www.earth.com/news/edible-plants-could-replace-shots-as-vaccines/">plant</a> extracts to traditionally cured processed meats has recently been shown to reduce the levels of N-nitroso compounds (NOCs) in egested fecal matter in humans. This may mean that plant extracts, such as those from Japanese knotweed, could be used to replace the questionable chemical compounds traditionally used in the curing and processing of meats.



Red meat stimulates the production of NOCs in the colon, and this has been linked to increased risk of developing colorectal cancer. In addition, nitrites used in the curing or processing of meat are also a source of NOCs. Nitrites are commonly added to meat during processing to prevent the growth of pathogenic bacteria, to avert rancidity, and to create the characteristic pink color of cured meats such as bacon and ham.&nbsp;&nbsp;



The safety of eating processed meat has been debated for years, with several reports from the World Cancer Research Fund stating that there is convincing evidence that its consumption is associated with cancer risk. The International Agency on Research on Cancer has classified processed meat as carcinogenic to humans (Group 1 carcinogen), based on sufficient evidence in humans that the consumption of processed meat causes colorectal cancer.



In a recent study, researchers from the PHYTOME project developed processed red meat products that included added natural substitutes of plant origin in order to limit the use of nitrite while still retaining microbial safety. The range of sausages and hams had a mixture of plant and fruit extracts added to them, including rosemary, green tea, and resveratrol extracted from Japanese knotweed.



“The ongoing worries about highly processed red meat have often focused on the role of nitrite, and its links with cancer. The PHYTOME project tackled the issue by creating processed red meat products that replace additives with plant-based alternatives," said Gunter Kuhnle, Professor of Nutrition and Food Science at the <a href="http://www.reading.ac.uk/">University of Reading</a>.



The aim of the study was to evaluate the effect of consumption of processed red meat products with reduced levels of nitrite and with normal levels, but with the addition of phytochemicals in both cases. Apparent total nitroso compounds (ATNCs) were measured and the results were compared with the levels of ATNCs in the feces of people who ate minimally processed white meat.&nbsp;



The results, published in the journal&nbsp;<a href="https://doi.org/10.1002/mnfr.202001214">Molecular Nutrition and Food Research</a>, found that the ATNCs in participants’ feces were significantly lower after consumption of both the normal nitrate and reduced nitrate meats that had been treated with phytochemicals. In both cases, levels of nitroso compounds were similar to those found in people who had eaten the white meat.



“Our latest findings show that using natural additives in processed red meat reduces the creation of compounds in the body that are linked to cancer,” explained Professor Kuhnle.&nbsp;



“Surprisingly, the natural additives seemed to have some protective effects even when the red meat still contained nitrite. This suggests that natural additives could be used to reduce some of the potentially harmful effects of nitrite, even in foods where it is not possible to take out nitrite preservatives altogether.”



These results potentially cast a new perspective on the Japanese knotweed, a perennial plant that is commonly seen as an invasive species and a pest in North America and Europe. It contains a form of resveratrol most useful to the human body and is rapidly becoming the preferred source of this phytochemical.



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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

Japanese knotweed could lower cancer risk of processed meat

The addition of plant extracts to traditionally cured processed meats...

It is a well known fact that climate change will heat up the Earth, but new research from the <a href="https://www.umass.edu/">University of Massachusetts Amherst</a> has focused on exactly how fast global warming will affect the Northeast coast of the United States from Maine to Delaware.&nbsp;



The researchers concluded that the Northeast is heating faster than the majority of North America as a result of drastic changes in the atmosphere above the North Atlantic.&nbsp;



While investigating what global warming means for the Northeast, in particular, study lead author Ambarish Karmalka found evidence of the rapid rates of coastal warming in the Northeast and Atlantic in comparison to other regions.



“The key findings here are that the observed warming in coastal Northeast is exceptional,” explained Karmalkar. “Some of the biggest populations centers in the U.S. are suffering the greatest degree of warming, and that this warming is being driven both by equally rapid trends in the Atlantic Ocean and by changes in atmospheric circulation patterns.”&nbsp;&nbsp;



Further problems are being caused by the decreasing speed of the Atlantic Meridional Overturning Circulation (AMOC). This is a belt of water that transports warm, salty water to the north from the tropics, which then sinks and cools. Deep water currents will form, transporting the cooled water back south, but this process is slowing due to global warming.&nbsp;



&nbsp;“One consequence of this conveyor belt slowdown is more heating of the ocean off the Northeastern coast, which helps to explain the spike in ocean temperatures in the Mid-Atlantic regions,” said Karmalkar.



An additional sign of rising temperatures in the Northeast is the link between the AMOC and the North Atlantic Oscillation (NAO). This is a weather phenomenon that governs the wind's strength and position when blowing from the US, over the Atlantic, and on to Europe.&nbsp;



The NAO influences storm tracks, the jet stream and seasonal temperatures in the Northeast, and is naturally variable in behaviour.



However, Karmalkar and study co-author Radley Horton from Columbia University show that the varying behavior of the NAO has recently settled into a pattern which has increased the influence of ocean air on the eastern seaboard climate.



As a result, warmer ocean air is being blown over the coastal Northeast and heating up land temperatures.&nbsp;



In addition to this discovery, the research is significant as it highlights the importance of high resolution climate models for understanding global warming.



“Our research implies that without improved high-resolution data, regional climate assessments, which inform our ability to plan for the future, may underemphasize warming in this populous region," said Karmalkar.



The study is published in the journal <a href="https://www.nature.com/nclimate/">Nature Climate Change</a>.



---



By <a href="mailto:calumvaughan05@gmail.com">Calum Vaughan </a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Why is the Northeast coast a global warming hotspot?

It is a well known fact that climate change will...

A new study published in the journal <a href="https://www.science.org/doi/10.1126/scirobotics.abd5186">Science Robotics</a> has found that socially interactive robots built to assist <a href="https://www.earth.com/news/drawing-memory-retention-seniors/">seniors</a> with their daily living should be constructed as collaborative and peer-oriented rather than dominant and authoritative. This will maximize humans’ acceptance of their advice and assistance.&nbsp;



“When robots present themselves as human-like social&nbsp;agents, we tend to play along with that sense of humanity&nbsp;and treat them much like we would a&nbsp;person,” explained study&nbsp;lead author Shane&nbsp;Saunderson, a specialist in human-robot interaction at the <a href="https://www.utoronto.ca/">University of Toronto.</a>&nbsp;



“But even simple tasks, like asking someone to take their medication, have a lot of social depth to them. If we want to put robots in those situations, we need to better understand the psychology of robot-human interactions.”&nbsp;



According to Saunderson and his team, in order to understand how to build better robots, scientists should first understand the concept of “authority” and how to incorporate it into their machines. The researchers found that this concept can be divided into two: formal authority and real authority.



“Formal authority comes from your role: if someone is your boss, your teacher or your parent, they have a certain amount of formal authority,” Saunderson explained. “Real authority has to do with&nbsp;the control of decisions, often for&nbsp;entities&nbsp;such as&nbsp;financial rewards or punishments.



Saunderson and his colleagues devised a humanoid robot named Pepper and used it to help 32 volunteer participants to complete a series of tests. For some subjects, Saunderson was presented a formal authority figure, with Pepper as a simple helper, while for others Pepper was introduced as the authoritative leader of the experiment.



The researchers discovered that Pepper was less persuasive when presented as a strong authoritative figure than when introduced as a peer helper. “Social robots are not commonplace today, and in North America at least, people&nbsp;lack both relationships and a sense of shared identity with robots. It might be hard for them to come to see them as a legitimate authority,” explained Saunderson.&nbsp;



Thus, the scientists concluded that in order to create positive experiences in contexts of human-robot interaction, robots should be constructed as peer-oriented and collaborative rather than dominant and authoritative.&nbsp;



“This ground-breaking research provides an understanding of how persuasive robots should be developed and deployed in everyday life, and how they should behave to help different demographics,&nbsp;including our vulnerable populations such as older adults,”&nbsp;concluded study co-author Goldie Nejat.&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

Friendly robots are more helpful than authoritative ones

A new study published in the journal Science Robotics has...

If as a child, your parents forced <a href="https://www.earth.com/news/broccoli-and-cabbage-reduce-the-risk-of-heart-attack/">broccoli</a> on you against your will, you know that Brassica vegetables (including cauliflower, cabbage and brussel sprouts) are often unloved. A new study from the <a href="https://www.acs.org/">American Chemical Society</a> reveals the science behind why some kids are so repulsed by eating these vegetables.



The research shows that as the unwanted vegetable touches the tongue, a chemical reaction occurs. An enzyme that exists within the microbiome of some people’s saliva reacts with the plant, creating a sulfurous odor. Needless to say, this is unpleasant.&nbsp;



While previous research showed that adults have various levels of this enzyme within their mouths, the new study confirms that the same is true for children as well. Looking at the various levels of the enzyme, the scientists analyzed how this affects whether a child likes Brassica vegetables or not.



Using mass spectrometry, the scientists separated the active compounds causing the unpleasant taste reaction from steamed vegetables. Next, parent child pairs were tested for their reaction to the foul smelling compounds. The researchers mixed saliva with powdered cauliflower to see how much of the noxious chemical was produced by the interaction. There was great variability in how much of the smelly chemicals were produced by each saliva interaction.



Interestingly, in children, those whose saliva caused the worst reactions had the strongest dislike for Brassica vegetables. In adults, there was no cause and effect relationship between a dislike for Brassica and overactive saliva enzymes. The researchers also found that there was a lot in common between the saliva microbiome of a child and his or her parent.&nbsp;



The study has real world relevance because in most western countries, vegetable consumption is below daily recommendations. This health faux pas may be partially due to the microbes living in our mouths.&nbsp;&nbsp;



The research is published in the <a href="https://pubs.acs.org/journal/jafcau">Journal of Agricultural and Food Chemistry</a>.



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By <a href="mailto:zachfitzner@yahoo.com">Zach Fitzner</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Kids' dislike for vegetables caused by microbes in the mouth

If as a child, your parents forced broccoli on you...

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</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...

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.



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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...

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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

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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...

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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

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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...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Kainji Lake, a reservoir on the Niger River.



In 1968, Kainji Lake was created by the construction of the Kainji Dam. The Niger River, the third longest in Africa, enters the lake in the north.&nbsp;



According to <a href="https://www.earth.com/news/rivers-in-the-american-west-are-a-lifesaving-resource-for-birds/">ESA</a>, the creation of the lake submerged Foge Island and the town of Bussa and permanently flooded other riverine settlements, leaving around 50,000 people displaced.&nbsp;



Large parts of Foge Island are temporarily exposed during low water tides, and the land is often used by migrating fishermen. Kainji Dam is a dam across the Niger River in Niger State of Central Nigeria. 



Wild mammals occur at relatively low densities due to illegal hunting. Lake Kainji has suffered a dramatic decline as a fishery due to the high numbers of artisanal and subsistence fisherfolk using the lake. It has been suggested that a period of closure, together with controlled fishing rights may help improve fish stocks.



Kainji Lake National Park is the oldest of its kind in Nigeria. The park contains three distinct areas: a part of the Kainji Lake, the Borgu Game Reserve to the west of the lake, and the Zugurma Game Reserve to the southeast. The park is home to around 65 mammal species, 350 bird species, and 30 species of reptiles and amphibians. 



Video/ Image Credit: European Space Agency&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.

Kainji Lake in north central Nigeria

[sendtonews key="iuA5mpp3jv-1641775-12187" type="single"] Today’s Video of the Day from the...

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Today’s Video of the Day from <a href="https://www.igb.illinois.edu/">Carl R. Woese Institute for Genomic Biology</a> reveals how scientists can modify common crops like soybean, rice, and wheat to protect them from heat stress.



“We need to double crop production by 2050 to feed a growing global population, and not only are we not on track to do that, but climate change is further complicating things,” said Amanda Cavanagh, a lecturer at the University of Essex. 



The study is part of Realizing Increased Photosynthetic Efficiency (RIPE), an international research project that aims to develop food crops that turn the sun’s energy into food more efficiently.



“Using an engineering approach we designed multiple alternative metabolic pathways to photorespiration. Testing them in the field showed increases in productivity which led Amanda to significantly move the project forward by showing our engineered plants can withstand pretty extreme temperature stress,” said study co-author and RIPE researcher Paul South.&nbsp;



“As the climate changes and temperature stresses increase the pressure on our global food supply, farmers will need every tool available including engineering approaches like the synthetic biology used here to maintain safe and productive harvests.”



The experts tested plants modified to have more efficient photorespiration to see if they were better adapted to warmer temperatures.&nbsp;



The team found that the engineered plants produced 26 percent more biomass than the wild-type plants exposed to the same temperatures, and had 15 percent less yield loss under the higher temperatures.



Video Credit: Amanda Nguyen/University of Illinois



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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.

Designing crops that can beat the heat

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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...

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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

[sendtonews key="JRaP49ISmm-2357509-12187" type="single"] Today’s Video of the Day from the...

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

[sendtonews key="e4ZG0Jawp3-2374785-12187" type="single"] Astronomers at Johns Hopkins University have created...

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes the first comprehensive estimate of carbon density in the Saharan, Sahel, and Sudanian zones of Africa. In an effort to measure the amount of carbon stored across these drylands, a team of scientists used high-resolution satellite images and artificial intelligence to map nearly 10 billion individual trees. 



"The high spatial resolution (50 cm) combined with AI and field measurements used in this study is key to improving tree inventories in drylands," said Pierre Hiernaux, a French researcher working for NASA. "The ever-increasing availability of very high-resolution satellite imagery will make it possible to assess carbon pools and their dynamics at the individual tree level on a global scale."



"This study is exceptional because it is pioneering a type of approach that will revolutionize the monitoring of trees and forests on a global scale: in the short term, it will be possible to map the world's trees from the centre of the Amazon to our schoolyards," said <a href="https://www.inrae.fr/en">INRAE</a> researcher Jean-Pierre Wigneron.



"Many fields of application will become much more efficient and accurate, such as tracking carbon stocks, biodiversity, monitoring logging and protection against illegal forest degradation, in near real time.”



Video Credit: NASA Goddard&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.

Remote sensing will revolutionize the way we monitor trees

[sendtonews key="EjmSP20gQK-2593093-12187" 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 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

[sendtonews key="qjvhBOBnY8-2426650-12187" 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.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

[sendtonews key="oL4FnPTGCV-2384527-12187" type="single"] Today's Video of the Day from the...

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> features a visual dataset of.methane emissions from wetlands across the globe. Atmospheric methane levels have reached record highs in recent years, and wetlands are a major source of these emissions.&nbsp;



"Methane is an important greenhouse gas that contributes substantially to global warming. On a molecule by molecule basis, methane is much more efficient at trapping heat than carbon dioxide, the main driver of warming," says NASA.



"Though human activities, including agriculture, oil and natural gas production and use, and waste disposal, collectively contribute the majority of methane to the atmosphere, about a third of total methane emissions comes from wetlands."&nbsp;



According to NASA, understanding methane emissions from wetlands and other natural sources is critically important for scientists and policymakers who are working to combat climate change by reducing emissions from human activities.



Video Credit: NASA Goddard



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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.

Wetlands are a major source of methane emissions

[sendtonews key="f8fukm28Vz-2491833-12187" type="single"] Today's Video of the Day from NASA...

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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

[sendtonews key="6HyfrAJTBI-1831843-12187" type="single"] Today’s Video of the Day from the...

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Today’s Video of the Day from <a href="https://www.stowers.org/">Stowers Institute for Medical Research</a> describes why experts are studying zebrafish to gain a better understanding of how the immune system responds to injury. Zebrafish have the ability to repair and regenerate organs.



“Organ regeneration offers an exciting opportunity for studying the immune system and to inquire why some species can regenerate organs like the heart or missing limbs while others like humans cannot,” explained Dr. Tatjana Piotrowski.



Zebrafish sensory organ hair cells are an ideal system to investigate the pathways and cell types involved in regeneration since they are easily destroyed with antibiotics and begin regenerating within five hours. This enabled the researchers to identify the exact timing and genetic programs for each anti-inflammatory macrophage activation state.&nbsp;



“Our hypothesis is that human macrophages do not receive the proper chemical activation 'cocktail' to instruct pro-regenerative processes,” said Dr. Nicolas Denans. “Identifying the molecular recipe of macrophage activation in zebrafish may one day enable us to design regenerative immunotherapies in humans.”&nbsp;&nbsp;&nbsp;



“The new evidence is a valuable resource for comparative studies on the genetic programs involved in macrophage-mediated repair and regeneration. In other words, different types of injuries may induce different kinds of inflammatory responses. We want to decipher whether this 'language' is universal or if there are a variety of dialects."



Video Credit: Stowers Institute for Medical Research&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.

How the immune system responds to injury

[sendtonews key="0dEcERCq61-2283382-12187" type="single"] Today’s Video of the Day from Stowers...

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes how record-breaking heat expressed itself around the world in 2022.



Scientists have determined that 2022 was the 5th warmest year since 1880. Furthermore, the last nine consecutive years have been the warmest on record.



From devastating floods and wildfires to natural disasters like Hurricane Ian, 2022 showed us yet again how a warming climate affects people across the globe.&nbsp;



"As we look back at 20:22 and years past, we see that each year we better understand the challenges we face and how important it is to meet them," says NASA.



Video/ Image Credit: NASA Goddard



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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.

2022 illustrated the consequences of a warming climate

[sendtonews key="3UUsNkFOuS-2487333-12187" type="single"] Today's Video of the Day from NASA...

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"

[sendtonews key="QIoVYJqRBi-2434608-12187" type="single"] Today's Video of the Day from NASA...

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