High in Alaska’s Brooks Range, streams that once ran so clear you could drink from them are now the color of rusty tea. The water looks hazy, smells metallic, and can stain rocks orange for miles.&nbsp;



Fish are struggling, insect life is smothered, and the change has arrived with startling speed. Scientists say the culprit isn’t industry. It’s <a href="https://www.earth.com/news/thawing-permafrost-could-tip-earths-climate-balance/">thawing permafrost</a>.



<h2 class="wp-block-heading" id="h-when-frozen-ground-wakes-up">When frozen ground wakes up</h2>



For millennia, Arctic permafrost - permanently frozen soil - locked minerals in place. As the region warms, that icy seal is failing. Water and oxygen seep into freshly thawed ground and set off a chain reaction in sulfide-rich rocks (pyrite is a prime example).&nbsp;



The chemistry is textbook: sulfides oxidize, sulfuric acid forms, and the acid leaches metals like <a href="https://www.earth.com/news/iron-was-lifes-first-essential-metal-and-shaped-early-evolution/">iron</a>, aluminum, and cadmium from surrounding rock. Those metals then flush into rivers and streams.



“This is what acid mine drainage looks like,” said Tim Lyons, a biogeochemist at the University of California, Riverside. “But here, there’s no mine. The permafrost is thawing and changing the chemistry of the landscape.”



<h2 class="wp-block-heading" id="h-astounding-changes-in-water-chemistry">Astounding changes in water chemistry</h2>



A new study zeroes in on the Salmon River, a key waterway in the Brooks Range, documenting just how far the contamination has progressed.&nbsp;



But the authors stress the pattern isn’t isolated. Similar transformations are underway across dozens of Arctic watersheds that share the same mix of geology and thaw.



“I have worked and traveled in the Brooks Range since 1976, and the recent changes in landforms and water chemistry are truly astounding,” said David Cooper, a <a href="https://www.colostate.edu/" target="_blank" rel="noreferrer noopener">Colorado State University</a> research scientist and co-author of the study.



The alarm first sounded in 2019. Ecologist Paddy Sullivan of the <a href="https://www.alaska.edu/alaska/" target="_blank" rel="noreferrer noopener">University of Alaska</a> was flying into the backcountry to study northward-shifting forests when his bush pilot mentioned the Salmon hadn’t cleared after snowmelt - it looked, he said, “like sewage.”&nbsp;



Sullivan’s field observations led to a collaboration with Lyons, <a href="https://www.alaskapacific.edu/" target="_blank" rel="noreferrer noopener">Alaska Pacific University</a>’s Roman Dial, and others to trace the cause and measure the ecological fallout.



<h2 class="wp-block-heading" id="h-toxic-metals-in-alaska-s-rivers">Toxic metals in Alaska's rivers</h2>



The team’s analysis confirmed a geochemical cascade. Permafrost thaw exposes sulfide-bearing rocks, oxidation generates acidity, and the resulting acid mobilizes a suite of metals.&nbsp;



In small doses many metals are harmless or even essential. But at higher concentrations they become toxic to aquatic life - and the Salmon River’s waters now exceed the <a href="https://www.epa.gov/" target="_blank" rel="noreferrer noopener">U.S. Environmental Protection Agency</a> thresholds for several metals detrimental to fish and invertebrates.



Iron is the most visible signal. As iron oxidizes, it forms fine, orange precipitates that cloud the water and coat the streambed. That haze blocks sunlight that <a href="https://www.earth.com/news/antarctic-algae-that-once-cooled-earth-are-now-disappearing/">algae</a> and aquatic plants need, and the sludge blankets the gravel and cobbles where insect larvae live and fish spawn. 



Cadmium is more insidious: it can accumulate in fish organs, potentially affecting predators from Dolly Varden <a href="https://www.earth.com/news/trout-living-in-polluted-rivers-evolved-to-tolerate-high-metal-levels-in-the-waters/">trout</a> and grayling to birds and bears.



<h2 class="wp-block-heading" id="h-ripple-effects-in-the-food-chain">Ripple effects in the food chain</h2>



For now, the researchers say metal levels in edible fish tissue are not considered hazardous to humans. But indirect risks loom large.&nbsp;



Chum salmon - central to the diets and culture of many Indigenous communities - lay their eggs in clean, oxygenated gravel. When those spaces fill with fine sediment and metal precipitates, the oxygen drops and eggs can suffocate. 



Changes in insect communities ripple up the <a href="https://www.earth.com/news/oceans-twilight-zone-stabilizes-the-marine-food-chain/">food chain</a>, weakening the foundation that supports juvenile fish and the species that eat them.



<h2 class="wp-block-heading" id="h-irreversible-shift-in-alaska-s-rivers">Irreversible shift in Alaska's rivers</h2>



Unlike mine sites - where engineers can install liners, drains, or neutralizing systems - these rivers wind through remote, roadless country, and the sources of contamination are everywhere thaw has reached the right rock. There is no single pipe to plug, no settling pond to build.



“Wherever you have the right kind of rock and thawing permafrost, this process can start,” Lyons said. And once it does, it tends to keep going. The only true “off switch” would be for the permafrost to refreeze - an unlikely prospect in a warming climate.



“There’s no fixing this once it starts,” Lyons said. “It’s another irreversible shift driven by a warming planet.”



<h2 class="wp-block-heading" id="h-fingerprints-of-global-warming">Fingerprints of global warming</h2>



The experts hope their findings will help communities, land managers, and fisheries prepare - by expanding water quality monitoring, identifying vulnerable spawning grounds, planning alternative harvests if runs falter, and adapting management practices as conditions change.



The broader message is sobering. The Brooks Range is about as far from cities and smokestacks as you can get. Yet its rivers are wearing the unmistakable fingerprints of global warming.



“There are few places left on Earth as untouched as these <a href="https://www.earth.com/news/alaskas-rivers-are-rusting-and-the-changes-are-visible-from-space/">rivers</a>,” Lyons said. “But even here, far from cities and highways, the fingerprint of global warming is unmistakable. No place is spared.”



Rivers once known for their wild clarity are telling a new story - one where ancient ice, long trusted to keep the land’s chemistry in check, is finally letting go.



The study is published in the journal <a href="https://www.pnas.org/doi/10.1073/pnas.2425644122" target="_blank" rel="noreferrer noopener">Proceedings of the National Academy of Sciences</a>.



Image Credit: Taylor Rhoades



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Alaska's rivers are turning orange, and the changes are irreversible

High in Alaska’s Brooks Range, streams that once ran so clear you could drink from them are now the color of rusty tea. The water looks hazy, smells metallic, and can stain rocks orange for miles.&nbsp; Fish are struggling, insect life is smothered, and the change has arrived with startling speed. Scientists say the culprit isn’t industry. It’s thawing permafrost. When frozen ground wakes up For millennia, Arctic permafrost - permanently frozen soil - locked minerals in place. As the region warms, that icy seal is failing....

Ice loss in the Western Palmer Land region of the Antarctic Peninsula is much less than recently reported, according to a new study.

The region’s  glaciers are now pouring an additional 15 cubic kilometers of ice into the oceans each year compared to the 1990s, according to the study by an international team of researchers led by the <a href="http://cpom.org.uk/">UK Centre for Polar Observation and Modelling</a> at the<a href="https://www.leeds.ac.uk/"> University of Leeds</a>.

The new study challenges the findings of a recent study from the <a href="http://www.bristol.ac.uk/">University of Bristol</a> that reported 45 cubic kilometers per year increase in ice loss from the sector. 

“Dramatic changes have been reported in this part of <a href="https://www.earth.com/news/warm-winds-weakening-ice/">Antarctica</a>, so we took a closer look at how its glaciers have evolved using 25 years of satellite measurements dating back to the early 1990s," said lead author of the Leeds study, Dr Anna Hogg.

The findings, published Tuesday  in <a href="http://agupubs.onlinelibrary.wiley.com/hub/journal/10.1002/(ISSN)1944-8007/">Geophysical Research Letters</a>, represent the first detailed assessment of changing glacier flow in Western Palmer Land -- the southwestern corner of the Antarctic Peninsula.

"Dramatic changes have been reported in this part of Antarctica, so we took a closer look at how its glaciers have evolved using 25 years of satellite measurements dating back to the early 1990s," lead author Dr Anna Hogg, from the Leeds' School of Earth and Environment, said.

The measurements provide the first direct evidence that Western Palmer Land is losing ice due to increased glacier flow - a process known as dynamical imbalance, the study said.

The researchers found that between 1992 and 2016, the flow of most of the region's glaciers increased by between 20 and 30 centimetres per day, equating to an average 13 percent speedup across the glaciers of Western Palmer Land as a whole.

These measurements provide the first direct evidence that Western Palmer Land is losing ice due to increased glacier flow -- a process known as dynamical imbalance.

However the flow has not increased enough to  back the 45 cubic kilometers per year increase in ice loss described in the University of Bristol research, according to the Leeds scientists.

"Although Western Palmer Land holds a lot of ice - enough to raise global sea levels by 20 centimeters -- its glaciers can't be responsible for a major contribution to sea level rise, because their speed has barely changed over the past 25 years,” said study co-author Professor Andrew Shepherd, from Leeds.

--

By: <a href="mailto:dbeasley@earth.com">David Beasley </a><a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="https://www.leeds.ac.uk/">University of Leeds</a>

Actual ice loss in Antarctic Peninsula less than reported

Ice loss in the Western Palmer Land region of the...

Sunscreen could be killing <a href="https://www.earth.com/news/fish-saving-coral-reefs/">coral reefs</a> surrounding Hawaii’s eight main islands, and Hawaii may be gearing up to do something about it.

Earlier this year, Hawaii state senator Will Espero introduced a bill that would ban the sale of sunscreens containing the chemical oxybenzone within the state. According to <a href="http://www.popsci.com/">Popular Science</a>, “there’s a reasonably good chance it will pass and become law.”

Espero and others became concerned about sunscreen  on the strength of a few studies, most recently a 2015 paper in the journal<a href="https://link.springer.com/article/10.1007/s00244-015-0227-7"> Environmental Conamination and Toxicology</a> led by Craig Downs, executive director of the <a href="http://www.haereticus-lab.org/">Haereticus Environmental Laboratory</a> in Clifford, Va.

Oxybenzone is toxic to the symbiotic algae that live within coral, Downs found.. In addition to giving coral their colored appearance, the algae also provide the coral with much needed oxygen and help cart away the coral’s waste, the magazine said.

When the algae die off, the corals turn white (referred to as bleaching), which is a dire sign—with less oxygen and more waste, the coral struggles to survive. Oxybenzone is more toxic to plants when those plants are exposed to sunlight. 

When coral cells are exposed to oxybenzone, it damages their DNA—causing harmful mutations. It also causes young coral to harden, essentially trapping them in their own skeletons and killing them. Oxybenzone can kill at least seven different types of coral, and it only takes: a single drop in 4.3 million gallons of water—six and a half Olympic sized swimming pools to be deadly. According to Downs, an estimated 6,000 to 14,000 tons of sunscreen lotion are released into coral reef areas each year.

A 2007 study conducted by researchers at the <a href="https://www.plymouth.ac.uk/">University of Plymouth</a> and published in the journal Applied and Environmental Microbiology found that sunscreens cause the rapid and complete bleaching of hard corals even at very low concentrations.

Those result were mirrored in a 2008 study, published in the journal <a href="https://ehp.niehs.nih.gov/">Environmental Health Perspective</a>, conducted by researchers from the <a href="http://www.univpm.it/English/">Polytechnic University of the Marche</a> in Ancona, Italy.

Other places have banned the use of chemical sunscreens specifically near reefs, including Xel-Ha in Cancun’s Riviera Maya. But Hawaii’s ban, if successful, would be unusual for its scale—it would be statewide, across all of the islands, affecting even those who may never set foot in the ocean, Popular Science reported.

--

By: <a href="mailto:dbeasley@earth.com">David Beasley </a><a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="http://www.popsci.com/">Popular Science</a>

Hawaii might ban certain sunscreen to protect coral reefs

Sunscreen could be killing coral reefs surrounding Hawaii’s eight main...

Recently, earthquakes in certain areas of <a href="https://www.earth.com/news/oklahoma-earthquakes-drop-off/">Oklahoma</a> have been on the rise. Many experts believe that most Oklahoma earthquakes since 2009 have been caused by wastewater produced by oil and gas drilling that has been injected back into the ground.

The magnitude 5.8 earthquake that struck Oklahoma was felt widely across the state, and is believed to have been caused by variation in the rate of wastewater injection in disposal wells. A new report published in <a href="http://srl.geoscienceworld.org/">Seismological Research Letters</a> details this occurrence.

The Pawnee earthquake occurred in an area with active wastewater disposal wells, and was the largest earthquake recorded in the state since the 1950s. Andrew Barbour of the <a href="https://www.usgs.gov/">U.S. Geological Survey</a> and colleagues analyzed injection data from nearby disposal wells in Osage County, finding a significant increase in injection rates in the years leading up to the Pawnee earthquake.

Data sets showed that some wells were injected with wastewater at a constant rate, while others varied the rate over time. The researchers found that the overall injected volume was about the same between these two types of wells.

However, the research team modeled different injection rates and discovered that the variable-rate wells were likely the most influential towards causing the earthquake. They report that “long-term injection may have been responsible for a gradual loading of the fault to the point where it primed the fault for failure triggered by the short-term high-rate injection...”

The team also believes that even if the variable injection rates weren’t used, it’s likely that the fault still would have failed, just at a much later time.

As the debate over fracking and oil and gas drilling continues to gain traction, studies such as this are increasingly pointing out the dangers of these practices. Besides potentially causing earthquakes, the groundwater contamination that is occurring across the country due to these resource extraction methods are causing major problems as well. Exposure of these problems will hopefully lead to some of these methods being improved or eradicated if they continue to put the public in harm’s way.

--

By <a href="mailto:certz@earth.com">Connor Ertz</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="https://www.seismosoc.org/">Seismological Society of America</a>

Oklahoma earthquake may have been caused by wastewater injection

Recently, earthquakes in certain areas of Oklahoma have been on...

The realities of climate change are usually daunting to think about and exhausting to truly comprehend. From increased severe weather patterns to decreased water supply and acidic oceans, it’s tough to keep track of every negative associated with the changing climate. So here’s one more to add to the list: significantly smaller crop yields from our food supply. Climate change will likely bring on more droughts and leave many of our crops starving for water. Therefore, it is important that scientists work to develop climate-resilient crops that can withstand these poor conditions – especially for our major crops.

The current and future increases in climate variability have researchers searching for resilient wheat varieties that can still produce high yields in non-ideal soil and weather. The market for healthier foods is also growing, creating an expanded demand for nutritionally-improved wheat varieties as well.

A recently published paper in the journal <a href="https://dl.sciencesocieties.org/publications/cs">Crop Science</a> analyzes the connections between wheat plants and a type of carbohydrates called fructans. Fructans are found in a number of plants, and play important physiological roles in both plants and humans.

In plants, fructans increase tolerance for environmental stresses such as <a href="https://www.earth.com/news/nasa-study-man-made-fires-drought/">drought</a>, cold temperatures, and salinity – all of which are associated with climate change. Furthermore, consumption of fructans by humans is believed to improve gut health.

Despite their importance, the utility of fructans as a breeding target for different wheat varieties has yet to be examined. This new study draws upon the current state of knowledge about fructans in wheat and their connection to human health, leading to a suggestion of potential breeding methodologies and goals for the future.

Moving forward, the push to breed wheat for increased fructans will help develop more climate-resilient varieties that will also have increased nutritional value, a win-win for anyone who wants good food and more of it.

--

By <a href="mailto:certz@earth.com">Connor Ertz</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="https://www.agronomy.org/">American Society of Agronomy</a>

Image Credit: Mark Sorrells

As climate change looms, climate-resilient wheat varieties bloom

The realities of climate change are usually daunting to think...

As climate change brings a hotter summer season, an automatic response is to crank up the electricity. The reality is that using more electricity perpetuates global warming. Power plants pump more carbon dioxide into the atmosphere, prolonging the effects of greenhouse gas emissions and the <a href="https://www.earth.com/news/solar-activity-climate-change/">climate change</a> that results. Here are some environmentally friendly ways to keep cool this summer.

Decorate with plants

Household plants can naturally decrease indoor temperatures. Plants lose water during transpiration, which cools the air around them. Plants also remove harmful toxins from the air. The Boston Fern, which is considered to be one of the most effective air purifiers among houseplants, is known for cooling the home. Another option is the Areca Palm, which also has a cooling effect.

Hang blackout curtains

Window treatments offer an eco-friendly way of cooling down the house. Blackout curtains reduce energy costs by blocking light and heat from coming in through the windows. Blackout curtains are so effective at blocking light that the British relied on them during World War II to avoid detection by bomber pilots. Blackout curtains block up to 99 percent of light, and some brands claim to block 40 percent of noise as well.

Stay hydrated

A simple way to stay cool is to keep hydrated. Hydration lowers the body's core temperature by allowing perspiration. Water may be the best way to hydrate, but it is not the only way. There are delicious foods that are made up of over 90 percent water including strawberries, cucumbers, and watermelon. Skim milk, soup, and yogurt are also hydrating foods that are easy to enjoy.  

Paint your roof white 

White-washing is an ancient method of cooling the home that is making a comeback. A roof painted with a white coating reflects up to 70 percent more sunlight than traditional dark roofs. A white roof can reflect up to 90 percent of solar heat, which noticeably cools the air temperature. This is a simple process that involves a single coat of high-quality, waterproof exterior paint.

Buy a dehumidifier 

While humidity does not actually raise the temperature, it changes the human perception of how hot or cold it is. Humidity means extra moisture is in the air that prevents sweat from evaporating, leaving the body hot and uncomfortable. Dehumidifiers take extra moisture out of the air and make the indoor temperature more comfortable. Dehumidifiers also prevent the dangerous mold and mildew that form in high-humidity environments.

In the future, resources such as wind and solar energy will generate more clean power. For now, the electricity generated by these renewable resources is not completely reliable, and must be backed up by CO2-emitting power plants. Simple alternatives can make a huge difference in lessening harmful effects on the atmosphere. 

--

Original Feature By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Environmentally friendly ways to stay cool this summer

As climate change brings a hotter summer season, an automatic...

As world leaders drag their feet on effectively curbing greenhouse gas <a href="https://www.earth.com/news/carbon-emissions-income-gap/">emissions</a>, many are left wondering how they can best brace for the effects of global warming.

Thermal comfort, also known as human comfort, is dependent upon the environment to supply conditions needed for humans to avoid feeling too hot or cold. Air temperature makes a big difference, but it is not the only factor that affects thermal comfort. Wind speeds, sunlight, and humidity are some other environmental elements that affect human satisfaction.

Humidity reduces the rate of evaporation of sweat from the skin. Sweating is needed to cool the human body, and when its benefits are reduced it causes physical discomfort.

Wind removes heat from the winter air and makes it feel colder. In China, this wind chill is intensified when the wind blows in frigid air from Siberia. 

Scientists from <a href="http://english.iap.cas.cn/">The Institute of Atmospheric Physics of the Chinese Academy of Sciences</a> teamed up with other researchers to establish how thermal comfort has changed in China due to global warming. The researchers used the index of effective temperature, which integrates the results of air temperature, humidity, and wind speed. Human perception of the environment was assigned classifications ranging from very cold to very hot. The classifications corresponded with values on the index of effective temperature.

The study found an increase in the effective temperature over recent decades, due in large part to warmer temperatures and decreasing wind speeds. Rising temperatures led to an increase in the days ranked as comfortable, with far more comfortable days recorded per year. These results, however, varied by both season and region. For example, the study showed a decrease in the number of comfortable days in Eastern China.

The research found an average of 255 days classified as cold or very cold, which comes as little surprise considering the highly-elevated regions of China like Tibet. Regardless, a significant decline of 15 fewer cold days were reported in the last decade compared to the 1960s. In correlation, 30 percent more days ranked as hot or very hot were recorded since the 1960’s. 

The study gives insight into the changes in thermal comfort over recent decades and also provides a model by which to predict varying degrees of human comfort in the future. Gao Xuejie is an author of the study from the <a href="http://english.iap.cas.cn/">Institute of Atmospheric Physics</a>. Xuejie said his research team will expand upon this study. 

“We can expect further and possibly accelerating levels of change in the future under global warming and, as such, our group is currently working on high-resolution regional climate model simulations to build a clearer picture in this regard,” said Xuejie.

--

By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff">Earth.com</a> Staff Writer

Source: <a href="http://english.iap.cas.cn/">The Institute of Atmospheric Physics of the Chinese Academy of Sciences</a>

A look inside how global warming is going to feel

As world leaders drag their feet on effectively curbing greenhouse...

What could a sea level rise of 10 or 12 feet look like? Well, it doesn’t look good.

The <a href="http://www.noaa.gov/">National Oceanic and Atmospheric Administration</a> is preparing for just such a scenario, and it has the documentation to prove it. Now, the website <a href="http://www.climatecentral.org/">Climate Central</a> has turned that data into maps and photos that show just how devastating the rising seas could be.

In January, NOAA released its “Global and Regional Sea Level Rise Scenarios for the United States,” and things look bleak.

In the worst case scenario based on decades of sea level data, San Francisco, New York and the Florida Keys could be battling regular extreme flooding events by 2100 – a little over 80 years from now. 

“The impacts of this rise would be devastating. For instance, these levels would mostly or completely inundate Kitty Hawk and Cape Canaveral; MIT and the U.S. Naval Academy; JFK and SFO [airports]; and the Jefferson Memorial and Mar-a-Lago. More than 99 percent of today’s population in 252 coastal towns and cities would have their homes submerged,” said Climate Central, an independent organization of climate scientists and science journalists.

The NOAA report predicts an average sea level rise of 10 to 12 feet along the coastal U.S. by 2100. Coastal regions higher above the current sea level and with a steeper rise away from the sea will be less affected than low-lying areas. 

Using NOAA's report, Climate Central has created a series of stunning and devastating maps of just what that might look like.

“These findings all reflect local sea level projections through 2100. However, under the extreme scenario, the sea would not stop rising that year. Rather, it would continue to add more than 1.5 feet per decade, and exceed 30 feet by 2200 for all coastal states except Alaska, where some locations might see 5 to 10 feet less,” the site states.

The doom-and-gloom look at the possible results of extreme flooding includes a few bright spots. There is still work that can be done to prevent some of the worst scenarios from coming to pass, even if current climate trends continue.

For example, the Florida Keys could build a seawall based on historic data that could provide some protection from storm surges for decades, the NOAA document noted. Cutting global carbon emissions could drastically slow the sea level rise, Climate Central said. 

“The extreme scenario is considered unlikely, but it is plausible. NOAA’s report and Antarctic research suggest that deep and rapid cuts to heat-trapping pollution would greatly reduce its chances,” Climate Central said.

<a href="http://www.climatecentral.org/news/extreme-sea-level-rise-stakes-for-america-21387">Click here to view Climate Central’s maps</a> and lists of potentially affected cities.

—

By <a href="mailto:kcathey@earth.com">Kyla Cathey</a>, <a href="http://earth.com/staff">Earth.com</a> Staff Writer

Scientific group releases maps of potential sea level rise

What could a sea level rise of 10 or 12...

The U.S. <a href="https://www.epa.gov/">Environmental Protection Agency</a> has updated its website to reflect its “Back-to-Basics” agenda under new director Scott Pruitt – in the process removing several sections on the website that made climate science data available to the public.

Among the pages removed were datasheets on greenhouse gas emissions, detailed information about the Clean Power Plan, and data on how environmental issues affected different demographic groups, according to archived images of the old site posted by several news organizations Saturday.

On Saturday evening, a web search for “Clean Power Plan” still provided a link to the now-missing section of the EPA website, but clicking it redirected to a different page about energy independence, Earth.com discovered.

A search for the EPA’s climate science data, previously collected on a climate change mini-site, led to a placeholder page reading, “Thank you for your interest in this topic. We are currently updating our website to reflect EPA's priorities under the leadership of President [Donald] Trump and Administrator Pruitt.” 

A link to a snapshot of the old site was provided. The agency has told multiple news organizations that it will archive the old site.

“As EPA renews its commitment to human health and clean air, land, and water, our website needs to reflect the views of the leadership of the agency,” J.P. Freire, EPA associate administrator for public affairs, said in a <a href="https://www.epa.gov/newsreleases/epa-kicks-website-updates">statement posted to the website</a>. “We want to eliminate confusion by removing outdated language first and making room to discuss how we’re protecting the environment and human health by partnering with states and working within the law.”

Scientists and environmental advocates in the U.S. have expressed concern about the views of both the president and Pruitt in the past.

While Pruitt has made statements that acknowledge the rise of average global surface temperatures in recent decades, he has questioned whether human activity has an impact on that trend. 

In an interview with <a href="http://www.cnbc.com/2017/03/09/epa-chief-scott-pruitt.html">CNBC on March 9</a>, he said, “I think that measuring with precision human activity on the climate is something very challenging to do and there's tremendous disagreement about the degree of impact, so no, I would not agree that it's a primary contributor to the global warming that we see.”

The president, meanwhile, has expressed skepticism that climate change is occurring at all.

However, climate science data has shown evidence of a decades-long warming trend, and a strong consensus of climate scientists believe that the trend is affected by human activity and will continue. While there are detractors, science historian Dr. Naomi Oreskes <a href="https://books.google.com/books?id=PXJIqCkb7YIC">points out</a>, the majority work in fields unrelated or only loosely related to climate science.

—

By <a href="mailto:kcathey@earth.com">Kyla Cathey</a>, <a href="http://earth.com/staff">Earth.com</a> Staff Writer

EPA removes climate science data from public website

The U.S. Environmental Protection Agency has updated its website to...

Ocean acidification refers to the chemical reactions that happen when carbon dioxide is absorbed in seawater. In a new study, the <a href="http://www.adelaide.edu.au/">University of Adelaide</a> research team took an unprecedented approach to analyzing the effects of ocean acidification.

Ivan Nagelkerken, a professor from the <a href="http://www.adelaide.edu.au/">University of Adelaide</a>'s Environment Institute, led the study. "Our understanding of what's likely to happen has been hampered by an over-reliance on simplified laboratory systems centred on single levels of the food web. In this study, we created a series of three-level food webs and monitored and measured the results over a number of months to provide an understanding of future food webs under climate change," said Nagelkerken.

The researchers simulated marine food webs in 12 large aquariums, adding different species to represent seagrass, sand, and rocky reef habitats. They added currents that imitated tidal motion. The three food webs were based on plants such as algae, small invertebrates like shrimp, and fish that <a href="https://www.earth.com/news/sharks-hear-preys-heartbeat-important/">prey</a> on small invertebrates. 

The food webs were exposed to the levels of both ocean warming and acidification that are expected at the end of the century. The researchers analyzed the growth of organisms and the rates of feeding over the course of several months.

PhD student Sylvan Goldenberg explained the results. "Elevated carbon dioxide concentrations boosted plant growth; more plant food meant more small invertebrates, and more small invertebrates, in turn, allowed the fish to grow faster. However, ocean warming cancelled this benefit of elevated carbon dioxide by causing stress to the animals, making them less efficient feeders and preventing the extra energy produced by the plants from travelling through the food web to the fish,” said Goldenberg.

The study concluded that warming waters will negate any potential benefits of ocean acidification, and that the increasing temperatures of the water will overpower the balance of marine food webs.

"The consequences for marine ecosystems are likely to be severe," said Nagelkerken. Oceans in the future may provide less fish and shellfish for us to eat, and larger animals that are at the top of the food web, in particular, will suffer. We hope this study will provide predictive understanding which is critical for effective fisheries management."

--

By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="http://www.adelaide.edu.au/">University of Adelaide</a>

Increasing ocean acidification may devastate future marine food webs

Ocean acidification refers to the chemical reactions that happen when...

Transylvania is a region of central Romania that is known for its gothic charm and rugged beauty. Transylvania is also home to the most-explored ice cave in the world, known as Scarisoara. Radiocarbon dating suggests this cave glacier is around 10,500 years old, making it the oldest cave glacier in the world. A team of scientists examined ice obtained from the Scarisoara Cave and discovered it provided details of weather conditions over the past 10,000 years.

Researchers from the <a href="http://www.iser.ro/en/">Emil Racovita Institute of Speleology</a> in Cluj-Napoca gathered samples from the Scarisoara ice cave. Scientist Bogdan Onac of <a href="http://www.usf.edu/">University of Southern Florida</a>'s School of Geosciences collaborated with scientists from all over the world including representatives of the <a href="https://www.qub.ac.uk/">University of Belfast</a>, <a href="http://www.uni-bremen.de/en.html">University of Bremen</a> and <a href="http://www.su.se/english/">Stockholm University</a>. The team analyzed the ancient ice samples in an effort to reconstruct the weather patterns of the Holocene period, which began around 12,000 years ago and continues today.

Over time, snow and rain had frozen in the underground deposits of the Scarisoara Cave. The cave had collected precipitation from the Atlantic Ocean and the <a href="https://www.earth.com/image/storm-90m-mediterranean-sea/">Mediterranean Sea</a>, making this an ideal location to track the behavior of storms that moved across Central and Eastern Europe. The frozen layers of ice contained chemical evidence of shifts in the weather over the last 10,000 years. The significance of the study, published this week in Scientific Reports, is that up to this point scientists have mainly relied on summer conditions to chart the changes of Earth’s climate.

Candace Major is a program director in the National Science Foundation’s Directorate for Geosciences. Major said, "Most of the paleoclimate records from this region are plant-based, and track only the warm part of the year -- the growing season.That misses half the story. The spectacular ice cave at Scarisoara fills a crucial piece of the puzzle of past climate change in recording what happens during winter."

The researchers charted the winter conditions in Central and Eastern Europe, which are becoming wetter and warmer over time. Temperatures had reached a maximum during the mid-Holocene, when scientists note there was a major shift in the atmospheric dynamics. At this time, winter storms changed paths and produced wetter and colder conditions in northwestern Europe and brought milder winter conditions to southeastern Europe. These warmer winters led to a rapid growth of population. 

"Our data allows us to reconstruct the interplay between Atlantic and Mediterranean sources of moisture," Onac said. "We can also draw conclusions about past atmospheric circulation patterns, with implications for future climate changes. Our research offers a long-term context to better understand these changes."

[caption id="attachment_342366" align="aligncenter" width="300"]<a href="https://www.earth.com/wp-content/uploads/2017/04/139240_web.jpg"><img class="size-medium wp-image-342366" src="https://www.earth.com/wp-content/uploads/2017/04/139240_web-300x189.jpg" alt="" width="300" height="189" /></a> Image Credit: C. Ciubotarescu[/caption]

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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

Source: <a href="http://www.usf.edu/">University of South Florida</a>

Ice cave provides 10,000 years of insight into climate change

Transylvania is a region of central Romania that is known...

The equivalent of over 10 billion dollars is lost every year in the wine industry due to weather disasters. From frost to floods to earthquakes, no wine-producing area in the world is immune to the impact of extreme weather events. A study led by Dr. James Daniell of <a href="https://www.kit.edu/english/">Karlsruhe Institute of Technology</a> measured which wine regions are the most vulnerable to various natural disasters. The data was used to create the first-ever global risk index for <a href="https://www.earth.com/news/wine-engages-brain/">wine</a> regions.  

Dr. Daniel collaborated with experts from Europe and Australia, including seismologists and meteorologists. The study examined 7500 regions in 131 countries. The goal of the project was to establish which wine regions are affected by various weather events and to what extent. The researchers also set out to analyze the role of climate change in the wine industry. 

The wine-producing areas of Mendoza and San Juan in Argentina proved to be at the highest risk of damage from natural disasters. Wine regions in Georgia, Moldova, Slovenia, Ecuador, and Japan also topped the list. The study established weather events such as heat, drought, floods, frost, hail, fires, and earthquakes are all serious risks to the wine industry. Wine regions are threatened with loss of production, loss of profits, and damaged assets.

The research found that hail and frost have caused the most damage to European wine companies over the past five years, particularly in the French region of Burgundy and in Italy’s Piedmont region. Hail damage in these areas resulted in major losses, with some vineyards losing as much as 90 percent of the value of the crops. Hailstorms also left behind irreparable damage to some of the vines. Dr. Daniell explained that hail nets can be used to help protect the vines.

Earthquakes are also a serious threat to the wine-producing areas, as they can wipe out everything a wine region needs to function. An earthquake in Chile in 2010 hit the wine industry hard when huge stainless steel tanks crashed to the ground. More than 125 million liters of wine were lost. 

"Earthquake-resistant design could have saved many millions of liters," said Dr. Daniell.

The researchers determined the wine industry will be affected both positively and negatively by climate change. Many wine regions will flourish as they modify their harvests to take advantage of changes in weather patterns. The researchers predict areas of America, Canada, and northern China will improve wine profits with new strains of grapes and optimized production techniques.

 "Through detailed natural hazard analysis, research can help winemakers and governments alike to prepare adequately for the natural hazards that they face and to reduce losses," explained Dr. Daniell.

 The global risk index for wine regions that was created from this study was revealed at the 2017 Annual Conference of the European Geosciences Union (EGU) in Vienna. The EGU presented Dr. Daniell with the "Early Career Scientist Award in Natural Hazards for 2017." The results of the study can be viewed on the <a href=" http://www.winerisk.com">"WineRisk" website</a>, which also offers solutions for wine regions.

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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

Source: <a href="https://www.kit.edu/english/">Karlsruhe Institute of Technology</a>

&nbsp;

Natural disasters cost the wine industry billions every year

The equivalent of over 10 billion dollars is lost every...

Over 2.5 billion years ago, Earth was mostly covered with oceans and there was very little oxygen in the atmosphere. The ocean water was less acidic and high in iron during this time period, known as the Archean Era. Archean oceans became home to the earliest living organisms on the planet. Scientists have had a very limited area in which to view these early life forms, but a new discovery may expand this field of research in a major way. 

Scientists from the <a href="https://uwaterloo.ca/">University of Waterloo</a> conducted a study to find bodies of water comparable to those of Archean times. With only four known lakes that are structurally similar to the ancient oceans, insight into microbial life has been restricted. Researchers, however, have made a breakthrough that qualifies potentially millions of Canada’s Boreal Shield lakes as locations for studying microbial communities.

Jackson Tsuji is a doctoral student in the Department of Biology in the Faculty of Science and a co-author of the study."With so many lakes to study, this discovery changes how we approach this field of research. It's exciting that these lakes, which are basically in our backyard, hold information that could have implications for global climate, past and present, and water management," said Tsuji.

The research team collaborated with microbiologists, geochemists, and freshwater specialists in the study. They compared the water chemistry of two Boreal Shield lakes to the four existing Archean-ocean analogue lakes using microbial community profiles. With specialized isotopic tools, researchers found the lakes of the Boreal Shield contain similar biological processes to the four existing analogue lakes.

“We used to think finding a suitable Archean ocean analogue meant that you had to find a lake that didn't mix. For example, current analogues are hundreds of meters deep and completely stratified," said Josh Neufeld, a professor in the Department of Biology. "An important discovery here was how robust this oxygen-free community is, despite the mixing."

Not only were the two Boreal Lakes found to be low in sulphur and high in iron, but they also developed oxygen-free layers in the summer.  During this season, the lakes can be used as laboratories to gain insights into ancient oceans. Research can extend beyond information about early life forms to learn more about greenhouse gas emissions and harmful algae growth as well.  

--

By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="https://uwaterloo.ca/">University of Waterloo</a>

Major breakthrough in the understanding of Earth’s early life forms

Over 2.5 billion years ago, Earth was mostly covered with...

<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=WXXGGiynIjs
</div><figcaption class="wp-element-caption">Greenland is not sinking. In fact, it is the opposite.</figcaption></figure>



<h2 class="wp-block-heading" id="h-a-contrasting-climate-response">A contrasting climate response</h2>



Most coastal towns are <a href="https://www.earth.com/news/sinking-land-will-intensify-the-effects-of-rising-sea-levels/" target="_blank" rel="noreferrer noopener">preparing for higher sea levels</a>, but <a href="https://www.earth.com/news/greenland-no-longer-has-to-worry-about-rising-sea-levels/" target="_blank" rel="noreferrer noopener">Greenland presents</a> a different scenario during climate change. The ground there is rising at a remarkable rate. Over the past decade, some areas have lifted about 20 centimeters, which translates to roughly 2 meters per century. This rate significantly exceeds current projections for sea level rise.



<h2 class="wp-block-heading" id="h-geological-rebound-process-through-climate-change">Geological rebound process through climate change</h2>



The mechanism behind this phenomenon is straightforward. As the ice sheet melts, the immense weight is removed from the bedrock, causing the land to rebound upward. This process resembles the way compressed material springs back when pressure is released.



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



Researchers at the <a href="https://www.dtu.dk/english/" target="_blank" rel="noreferrer noopener">Technical University of Denmark</a> are documenting this uplift using the GNET network, consisting of 61 GPS stations positioned around Greenland's coast. These sensors can detect movement with millimeter precision, providing detailed measurements of the ongoing changes.



The data reveal that current uplift rates exceed the gradual rebound occurring since the last ice age ended approximately 12,000 years ago. This acceleration corresponds directly with increased ice sheet melting rates.



<h2 class="wp-block-heading" id="h-coastal-transformation">Coastal Transformation</h2>



This uplift is actively reshaping Greenland's coastline. New islands and rocky formations, called "skerries," are emerging as previously submerged land surfaces rise above the water level. This represents a notable contrast to global concerns about rising seas.



The study, published in Geophysical Research Letters, demonstrates the varied regional impacts of climate change. While many locations face rising water levels, Greenland's bedrock is literally rising above the surrounding seas.



The full study was recently published in <a href="https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2023GL104851" target="_blank" rel="noreferrer noopener">Geophysical Research Letters</a>.



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Greenland's ground rises while coasts worldwide face higher seas

https://www.youtube.com/watch?v=WXXGGiynIjs Greenland is not sinking. In fact, it is the...

<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=DSM3EVeGHJU
</div><figcaption class="wp-element-caption">Companies like MindStudio help companies train their employees to implement the latest AI Agent building platform.</figcaption></figure>



<h2 class="wp-block-heading" id="h-ai-agent-training-transforms-the-workplace-fear-factor-into-a-competitive-advantage">AI agent training transforms the workplace 'fear factor' into a competitive advantage</h2>



Organizations that offer comprehensive artificial intelligence training to their workers find remarkable value that extends well beyond basic <a href="https://www.earth.com/news/mind-wandering-might-be-more-productive-than-you-think/" target="_blank" rel="noreferrer noopener">productivity improvements</a>. Emerging research demonstrates that carefully crafted AI training programs <a href="https://www.earth.com/news/ai-does-not-replace-human-creativity-but-enhances-it/" target="_blank" rel="noreferrer noopener">enhance</a> corporate performance, lower operational costs, and dramatically improve employee psychological well-being by turning workplace uncertainty into professional empowerment.



<h2 class="wp-block-heading" id="h-addressing-the-widespread-ai-anxiety-crisis-among-us">Addressing the widespread 'AI anxiety' crisis among us</h2>



A staggering 53% of employees expressed concern that the use of AI tools to automate work tasks could make them appear disposable to their employers, according to <a href="https://www.microsoft.com/" target="_blank" rel="noreferrer noopener">Microsoft</a>'s 2024 workplace survey. Such pervasive worry about being substituted by machines has caused what researchers have termed "AI technostress" – a psychological state that can result in occupational burnout and poorer mental well-being.



Data published in <a href="https://www.nature.com/palcomms/" target="_blank" rel="noreferrer noopener">Humanities and Social Sciences Communications</a> showed that belief in AI learning ability was a moderator in the link between technology adoption and work pressure, and higher confidence significantly lowered negative psychological responses. Workers provided ample training to become competent with AI software have significantly lower stress.



Companies like <a href="https://www.mindstudio.ai/" target="_blank" rel="noreferrer noopener">MindStudio</a> have platforms for building what are known as "AI Agents". In essence, AI Agents are simply tools that employees can build for themselves or their teams quickly and inexpensively. MindStudio will even train entire companies, from the CEO on down, at no cost. By letting MindStudio empower employees, companies avoid hiring more IT staff, buying more software, and implementing solutions to problems that do not exist.



MindStudio even has partners locally for companies, like <a href="http://www.dominnus.com" target="_blank" rel="noreferrer noopener">Dominnus</a> with offices in the Carolinas, California, and Denver, to help build AI Agents and support employees as they become resident AI experts for their organization. The training provided by MindStudio is applicable across other AI Agent building platforms as well.



<h2 class="wp-block-heading" id="h-revolutionary-productivity-through-focused-learning">Revolutionary productivity through focused learning</h2>



Organizations that implement large-scale AI training programs achieve dramatic outcomes. Employees performed tasks significantly better when they utilized AI support compared to when they didn't, according to <a href="https://www.nngroup.com/" target="_blank" rel="noreferrer noopener">Nielsen Norman Group</a> research findings. Their study documented productivity increases of 66% for a variety of professional tasks.



Federal Reserve Bank of St. Louis research finds workers record 33% higher productivity in time working with generative AI tools. The benefit is equivalent to 5.4% of work time savings for AI users – around 2.2 hours per week for full-time workers.



<h2 class="wp-block-heading" id="h-psychological-well-being-benefits-through-ai-competence">Psychological well-being benefits through AI competence</h2>



The emotional transformation when employees are provided with proper technology training is a fundamental transformation from fear to professional confidence. A survey of 600 employees across industries, carried out by ScienceDirect, proved that AI capabilities strengthen work environment commitment and improve job satisfaction.



A <a href="https://www.lut.fi/en" target="_blank" rel="noreferrer noopener">LUT University</a> study discovered that AI adoption has no direct effect on workers' well-being but does so indirectly through working conditions like task optimization and safety protocols. Strategically deployed AI that involves correct training can actually increase workplace mental well-being.



<h2 class="wp-block-heading" id="h-from-replacement-anxiety-to-partnership-confidence">From 'replacement anxiety' to 'partnership confidence'</h2>



Although 35% of those interviewed in recent McKinsey studies were concerned about workforce displacement, firms with large-scale training initiatives witness such fears dissipate quickly. The World Economic Forum found that two out of three respondents believe AI competencies will enhance their career prospects and job marketability.



This shift from fear to trust has measurable implications for job satisfaction. Applied Sciences research indicates AI can create tailored wellness programs based on individual employee requirements.



<h2 class="wp-block-heading" id="h-financial-benefits-of-increased-retention">Financial benefits of increased retention</h2>



The mental health advantages of AI learning have a direct impact on organizational bottom lines in the form of a positive feedback cycle with high retention of employees. Recent ROI research validates that artificial intelligence learning has a beneficial impact on employee turnover and satisfaction levels.



PriceWaterhouseCoopers' research documents 20% to 30% improvements in productivity, market speed, and revenue in organizations that attempt systematic AI adoption through comprehensive training.



<h2 class="wp-block-heading" id="h-environmental-advantages-of-ai-enabled-teams">Environmental advantages of AI-enabled teams</h2>



AI training has unforeseen environmental benefits as it makes the work environment more efficient. According to a study in Scientific Reports, the carbon footprint in writing and illustrating work is significantly lower when AI performs it compared to humans. AI software produces 130 to 1,500 times less CO2 equivalent per page of text created than human authors.



In addition, AI-driven remote work functionality significantly reduces environmental impact. Research by Cornell University and Microsoft indicates that remote workers reduce greenhouse gas emissions by up to 54% by not commuting daily to offices. Hybrid workers working remotely two to four days a week can reduce their carbon footprint by 11% to 29%.



<h2 class="wp-block-heading" id="h-cumulative-organizational-advantages">Cumulative organizational advantages</h2>



The compounding gains of better mental well-being, reduced turnover, increased productivity, and environmental benefits flow to enterprises from the pairing. McKinsey analysis estimates the long-term AI potential at $4.4 trillion in incremental productivity growth opportunity from business use cases.



As of now, 75% of knowledge workers globally utilize generative AI, mirroring widespread adoption patterns. Organizations that provide organized training and assistance see the most favorable results in productivity, worker satisfaction, and ecological sustainability.



The research overwhelmingly indicates that companies that invest in proper AI education, like that offered through <a href="https://www.mindstudio.ai" target="_blank" rel="noreferrer noopener">MindStudio</a>, establish win-win scenarios where employees are both more empowered and less stressed, and companies enjoy the gains of increased productivity, reduced turnover, and improved mental health outcomes throughout their workforce.



For more on MindStudio's free AI training for companies, visit the website's of MindStudio and Dominnus from the links below.



The research was published across a variety of peer-reviewed journals, including <a href="https://www.nature.com/palcomms/" target="_blank" rel="noreferrer noopener">Humanities and Social Sciences Communications</a>, <a href="https://www.frontiersin.org/journals/artificial-intelligence" target="_blank" rel="noreferrer noopener">Frontiers in Artificial Intelligence</a>, and <a href="https://www.mdpi.com/journal/applsci">Applied Sciences</a>.



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MindStudio.AI: <a href="https://www.mindstudio.ai" target="_blank" rel="noreferrer noopener">https://www.mindstudio.ai</a>



Dominnus: <a href="https://www.dominnus.com" target="_blank" rel="noreferrer noopener">https://www.dominnus.com</a>

AI agent training boosts mental health and profits

https://www.youtube.com/watch?v=DSM3EVeGHJU Companies like MindStudio help companies train their employees to...

<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=0HDXqTGEmi4
</div><figcaption class="wp-element-caption">Scientists give plants superpowers against bacterial disease</figcaption></figure>



<h2 class="wp-block-heading" id="h-a-natural-solution-to-disease-through-crop-modification">A natural solution to disease through crop modification.</h2>



The agricultural industry stands at a crossroads between productivity and environmental responsibility, and crop modification often carries a negative connotation. While chemical pesticides have long been the go-to solution for crop protection, their harmful effects on ecosystems and human health have prompted scientists to seek alternatives. The recent breakthrough by <a href="https://www.southampton.ac.uk/" target="_blank" rel="noreferrer noopener">University of Southampton</a> researchers offers a promising path forward through the precise manipulation of plant-associated microbial communities.



<h2 class="wp-block-heading" id="h-the-science-behind-microbial-partnerships">The science behind microbial partnerships</h2>



Plants naturally harbor diverse ecosystems of bacteria, fungi, and other microorganisms that function as biological allies. These microscopic partners contribute to disease resistance, nutrient absorption, and stress tolerance. However, until now, scientists lacked the tools to deliberately reshape these communities to enhance crop protection.



The Southampton team's approach centered on <a href="https://www.earth.com/news/engineered-plant-microbiomes-the-future-of-crop-protection/" target="_blank" rel="noreferrer noopener">modifying lignin biosynthesis genes in rice plants</a>. This strategic intervention altered the plant's metabolic output, creating conditions that favored beneficial bacterial populations while suppressing harmful ones. The result was a living defense system embedded within the plant itself.



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



The successful demonstration against Xanthomonas oryzae, the pathogen responsible for bacterial blight in rice, represents more than a laboratory achievement. Rice feeds nearly half the world's population, and bacterial blight causes devastating crop losses annually. Traditional control methods rely heavily on pesticides that contaminate soil and water systems.



<h2 class="wp-block-heading" id="h-looking-beyond-disease-resistance">Looking Beyond Disease Resistance</h2>



While disease protection represents the immediate application, the research framework opens doors to broader agricultural improvements. Future developments could engineer microbiomes to enhance nutrient uptake, reducing dependence on synthetic fertilizers. This dual benefit addresses both crop productivity and environmental sustainability.



<h2 class="wp-block-heading" id="h-the-path-forward">The path forward</h2>



As this technology advances from laboratory to field applications, it promises to reshape sustainable agriculture. The ability to program plants with their own biological defense systems could herald a new era where crops protect themselves naturally, reducing chemical inputs while maintaining yields necessary for global food security.



The study is published in the journal&nbsp;<a href="http://dx.doi.org/10.1038/s41467-023-44335-3" target="_blank" rel="noreferrer noopener">Nature Communications</a>.



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Revolutionizing agriculture through microbiome engineering

https://www.youtube.com/watch?v=0HDXqTGEmi4 Scientists give plants superpowers against bacterial disease A natural...

<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...

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

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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.



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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 <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



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Designing crops that can beat the heat

[sendtonews key="QGPzYnXEtN-1712599-12187" type="single"] Today’s Video of the Day from Carl...

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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



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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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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 



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Lesotho: Africa's "Kingdom in the Sky"

[sendtonews key="uV9Lh2fQbV-1760058-12187" type="single"] Lesotho: Africa's "Kingdom in the Sky" Today’s...

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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



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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



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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 <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



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2022 illustrated the consequences of a warming climate

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

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Satellites reveal how Earth's systems are interconnected Today’s Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes Earth’s interconnected systems, and how this network is affected by rising temperatures.&nbsp;



During 2020, average global temperatures matched the hottest year on record. The hurricane season was also record-breaking, with many of the storms intensifying at extraordinary speeds. Hot water in the ocean is fuel for hurricanes. The satellite data shows that it's all one interconnected system showing how Satellites reveal how Earth's systems are interconnected.



According to NASA, dust swept up from Northern Africa plays a major role in the formation of hurricanes, and is also a key source of fertilization in the Amazon rainforest. As a result of<a href="https://www.earth.com/news/seagrass-wasting-disease-is-fueled-by-climate-change/"> climate</a> change, dust plumes are expected to decline, which will have an effect on vegetation far away.&nbsp;



Images from Earth-observing satellites show how the world’s plant life is affected by natural disasters, fires, and deforestation. Satellites also reveal how widespread changes in vegetation impact waterways,&nbsp; the climate, air quality. Satellites communicate by using radio waves to send signals to the antennas on the Earth. "Earth From Space" is a groundbreaking two-hour special that reveals a spectacular new space-based vision of our planet. 



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



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Satellites reveal how Earth's systems are interconnected

[sendtonews key="JbW4VsY53O-1632195-12187" type="single"] Satellites reveal how Earth's systems are interconnected...

Today’s Video of the Day from the <a href="https://welcome.miami.edu/">University of Miami</a> Rosenstiel School of Marine and Atmospheric Science explores how changes in water temperatures have affected tiger shark habitats and movements in the North Atlantic Ocean. The study reveals that rising temperatures have caused the sharks to shift toward the poles over the past 40 years.



“Tiger shark annual migrations have expanded poleward, paralleling rising water temperatures,” explained study lead author Neil Hammerschlag. “These results have consequences for tiger shark conservation, since shifts in their movements outside of marine protected areas may leave them more vulnerable to commercial fishing.”



The researchers analyzed nine years of tracking data from satellite-tagged tiger sharks, combined with four decades of conventional tag and recapture data provided by National Oceanic and Atmospheric Administration (NOAA) Cooperative Shark Tagging Program.



The experts found that during the last decade of record heat, for every one-degree Celsius increase in water temperatures, tiger sharks migrated further poleward by over 400 kilometers. They also migrated two weeks earlier than usual to waters off the northeastern coast of the United States.



“Given their role as apex predators, these changes to tiger shark movements may alter predator-prey interactions, leading to ecological imbalances, and more frequent encounters with humans,” concluded Professor Hammerschlag.



Video Credit: University of Miami Rosenstiel School of Marine and Atmospheric Science



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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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Tiger sharks are shifting poleward as temperatures rise

Today’s Video of the Day from the University of Miami...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> is focused on the melt ponds that emerge during the spring and summer on the Greenland Ice Sheet, which is the largest ice mass in the northern hemisphere.



"Melt ponds are vast pools of open water that form on both sea ice and ice sheets and are visible as turquoise-blue pools of water in this Copernicus Sentinel-2 image," says ESA.



"When snow and ice melts atop glaciers, water flows in channels and streams and collects in depressions on the surface. These melt ponds can speed up the melting of the surrounding ice since they greatly reduce the ice’s ability to reflect sunlight."



"This can create a positive feedback where an increasing number of melt ponds absorb more heat which causes ice cover to melt even faster."



According to ESA, Greenland has been hit with a late-season heatwave that began in early September. This caused the type of melt event that usually occurs in the middle of summer.



"In a recent paper published in Nature Climate Change, scientists found that major sea-level rise from the melting of the Greenland ice cap is now ‘inevitable’ even if the burning of fossil fuels were to halt overnight," says ESA. "Using satellite observations of Greenland ice loss and ice cap from 2000 to 2019, the team found the losses will lead to a minimum rise of 27 cm regardless of climate change."



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



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Melt ponds on the Greenland Ice Sheet

[sendtonews key="qARzJPSabQ-2270617-12187" 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> describes how Earth is unique in our solar system for its ability to sustain liquid water on its surface. But now, the water cycle is shifting as the climate warms, and scientists must find ways to predict how these changes will affect water availability.



Overall, 96 percent of Earth's water is saltwater, and nearly all of freshwater is found in ice and groundwater. These sources of water are linked as it passes through solid, liquid and gas phases.



In a warmer climate, the water cycle will be transformed. It will be easier for water to evaporate and form clouds, and storms will become more frequent and intense. Some regions will get too much water, while others will be left without enough water. In addition, soil moisture will be lost - which threatens food security.



Scientists are using satellite data from over the last 40 years to track changes that are happening in the water cycle. This will ultimately help us prepare for extreme events and better manage our water resources, according to ESA.



Video 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



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Tracking changes in Earth's water cycle

[sendtonews key="fxH3eJHEkQ-2010196-12187" type="single"] Today’s Video of the Day from the...

Saturn,-,High,Resolution,3d,Images,Presents,Planets,Of,The

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard Space Flight Center</a> features images of Saturn from NASA’s Hubble Space Telescope. The photographs capture the start of the mysterious "spoke season" on Saturn - when unexplained features appear on its rings. 



According to NASA, both the cause of the spokes and their seasonal variability have yet to be fully explained by planetary scientists.



"Like Earth, Saturn is tilted on its axis and therefore has four seasons, though because of Saturn's much larger orbit, each season lasts approximately seven Earth years. Equinox occurs when the rings are tilted edge-on to the Sun," explains NASA.



"The spokes disappear when it is near summer or winter solstice on Saturn. (When the Sun appears to reach either its highest or lowest latitude in the northern or southern hemisphere of a planet.) As the autumnal equinox of Saturn's northern hemisphere on May 6, 2025, draws near, the spokes are expected to become increasingly prominent and observable."



Experts believe that the spokes may be a product of the planet's variable magnetic field. When magnetic fields interact with solar wind, an electrically charged environment is created. This phenomenon is visible on Earth as the northern lights.&nbsp;



"Scientists think that the smallest, dust-sized icy ring particles can become charged as well, which temporarily levitates those particles above the rest of the larger icy particles and boulders in the rings," says NASA.



The spokes were first observed in the early 1980s by NASA's Voyager mission. Depending on the angle of the rings, the spokes can appear dark or light.



"Thanks to Hubble's OPAL program, which is building an archive of data on the outer solar system planets, we will have longer dedicated time to study Saturn’s spokes this season than ever before," said NASA senior planetary scientist Amy Simon, head of the Hubble Outer Planet Atmospheres Legacy (OPAL) program.



"Despite years of excellent observations by the Cassini mission, the precise beginning and duration of the spoke season is still unpredictable, rather like predicting the first storm during hurricane season."



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



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Mysterious "spoke season" captured on Saturn

[sendtonews key="Ccjk8KEMzv-2550719-12187" type="single"] Today's Video of the Day from NASA...

Closeup,Of,Fresh,Green,The,Napier,Bush,Grass,As,Animal

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Today’s Video of the Day from <a href="http://www.ntu.edu.sg/">NTU Singapore</a> reveals that some plants can remove toxic heavy metals from soil.&nbsp;



The researchers analyzed samples of various tropical plant species to test for levels of heavy metals and metalloids. The study showed that there are existing plants with high levels of these contaminants, which means that these species are great candidates for drawing pollutants out of the soil.&nbsp;



Among the plants examined in the study, 12 species had accumulated several types of heavy metals and metalloids. These plants are widely available, including species that are native to Singapore.



“In a small nation like Singapore, land may be repurposed to support new development plans, so it is important that we have a green and sustainable way to remediate land that is contaminated," said Professor Lam Yeng Ming.



"We set out to uncover how to better make use of tropical plants to do phytoremediation and through advanced characterization techniques, we showed how some of these tropical plant species can be an environmentally friendly and literally a 'green' way to remove contaminants in soil."&nbsp;



"Phytoremediation also has benefits of cost effectiveness, simplicity of management, aesthetic advantages, and long-term applicability and sustainability. The strategy prevents erosion and metal leaching by stabilizing or accumulating heavy metals, so that helps reduce the risk of contaminant spread.”



Video Credit: NTU Singapore



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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.

Plants help remove heavy metals from contaminated soil

[sendtonews key="6SdlLLbt0t-1988946-12187" type="single"] Today’s Video of the Day from NTU...

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Today’s Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> describes why herbicides are not as effective in killing weeds anymore. In the 20th century, chemical companies developed thousands of herbicides. The most commonly used herbicide was glyphosate, which was introduced in 1974.



Over the past few decades, dozens of species of weeds have evolved resistance to glyphosate. Depending on the site of action, the part of the plant that an herbicide interacts with, weeds may even be resistant to herbicides that have not been developed yet.&nbsp;



With increasing resistance to glyphosate and other herbicides, weeds are - once again - becoming a major concern for farmers.&nbsp;



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.

Weeds are becoming increasingly resistant to herbicides

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Today’s Video of the Day from the <a href="https://www.jpl.nasa.gov/">NASA Jet Propulsion Laboratory</a> (JPL) describes a dust storm on Mars that was nearly twice the size of the United States. As the storm covered the southern hemisphere of the planet, some of NASA’s explorers had to delay their normal activities.



NASA’s Insight lander put itself in a "safe mode" for 11 days to conserve battery power because solar power was disrupted by the dust. The Ingenuity Mars Helicopter postponed flights until conditions improved.



"A fleet of NASA orbiters monitor Martian dust storms like this one and serve as lifelines to Earth by relaying data from the rovers and lander on the ground back to the team. This includes the Mars Reconnaissance Orbiter, MAVEN, and Odyssey," reports JPL.



"Dust storms like this recent one start close to the ground and are spread by wind as they rise – warming the cold Martian atmosphere."



The images in the video were captured by NASA’s Curiosity as the dust rolled in. A fleet of orbiters monitored the dust storm from above, relaying data from Mars’ explorers back to scientists on Earth.



Video &amp; Image Credit: NASA/JPL-Caltech/ASU/MSSS



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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.

NASA monitors giant dust storms on Mars

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