Reservoirs,With,Hydrogen.,Eco,Fuel,Storage,Tanks.,H2,Gas,For

Folschviller, a quiet town in France’s Moselle region, just handed the energy world a surprise it didn’t see coming. Beneath land once dotted with coal pits lies an estimated 46 million tons of natural hydrogen, a cache large enough to stir fresh conversations about how the planet powers itself. 



The figure tops half of today’s yearly gray hydrogen output, yet it carries none of the pollution burden that shadows the industry’s status quo.



The discovery lands at a moment when clean fuels are in high demand, but often too pricey or too dirty to use at scale. Here, nature has done the hard work. 



Instead of relying on factories or <a href="https://www.earth.com/news/more-warnings-fossil-fuels-are-causing-climate-health-and-biodiversity-crises/" target="_blank" rel="noreferrer noopener">fossil fuels</a>, this hydrogen has sat untouched until recent drilling exposed it - and the timing could not be more convenient for a world bent on cutting emissions.



<h2 class="wp-block-heading" id="h-finding-the-natural-hydrogen-motherlode">Finding the natural hydrogen motherlode</h2>



A research team hunting for methane struck a different kind of treasure at a depth of 4,101 feet. The drill core showed pockets of colorless gas, soon confirmed as hydrogen. 



Only after that eureka moment did word spread that the deposit belonged to the GeoRessources laboratory and France’s National Center for Scientific Research, or <a href="https://www.cnrs.fr/en" target="_blank" rel="noreferrer noopener">CNRS</a>.



The scientists were looking for clues to ancient hydrocarbons when the readings changed. They realized the reservoir might reshape regional energy plans, prompting fresh tests and economic modeling. 



Early estimates calculate the value of the find at roughly $184 billion, based on a conservative $4.00 per kilogram, or $4,000 per ton.



<h2 class="wp-block-heading" id="h-why-natural-white-hydrogen-matters">Why natural white hydrogen matters</h2>



Industry labels hydrogen by color to signal how it is produced. <a href="https://www.earth.com/news/green-hydrogen-energy-production-just-got-a-lot-easier/" target="_blank" rel="noreferrer noopener">Green hydrogen</a> splits water with renewable electricity, a clean method but one that still costs more than most companies can swallow. 



<a href="https://www.earth.com/news/shape-shifting-membrane-could-be-the-key-to-cleaner-energy/" target="_blank" rel="noreferrer noopener">Gray hydrogen</a> strips the element from natural gas, leaving behind carbon dioxide. White hydrogen skips both paths; it forms naturally underground and carries no direct carbon penalty.



That built‑in advantage tackles two headaches at once. It avoids the power‑hungry electrolysis required for green hydrogen and sidesteps the emissions from gray hydrogen’s fossil‑fuel origin. 



If engineers can lift the gas to the surface without leaks, factories could switch to a cleaner feedstock overnight.



<h2 class="wp-block-heading" id="h-simple-chemistry-at-work">Simple chemistry at work</h2>



White hydrogen begins when water seeps into iron‑rich rocks deep below ground. A chemical reaction splits the water molecules, releasing hydrogen gas that drifts into cracks and traps. 



Over thousands of years, those pockets grow. In some parts of the world - Mali, Russia, and isolated U.S. basins - gas even seeps to the surface, lighting small bush fires or fueling village stoves.



The French deposit likely formed the same way. Because it already sits in a pure state, producers can bypass the energy‑intensive clean‑up steps that plague other hydrogen sources. The gas emerges ready for pipelines, fuel cells, or industrial burners.



<h2 class="wp-block-heading" id="h-counting-dollars-and-emissions">Counting dollars and emissions</h2>



Hydrogen priced at $4.00 per kilogram could make low‑carbon steel, ammonia, and long‑haul trucking far cheaper than current green hydrogen models allow. 



With a price tag of $184 billion, the Moselle reserve reads like an open invitation to investors. Unlike oil or coal, its combustion releases only water vapor, trimming the environmental tab to nearly zero.



Yet money alone does not sway climate math. 



Replacing gray hydrogen with natural hydrogen at this scale would cancel about 130 million tons of <a href="https://www.earth.com/news/global-co2-emissions-rise-as-nations-tackle-fossil-fuel-dependence/" target="_blank" rel="noreferrer noopener">carbon dioxide</a> each year - the amount those gray plants now emit. That single swap could equal the annual emissions of a midsize European country.



<h2 class="wp-block-heading" id="h-local-benefits-for-france">Local benefits for France</h2>



Lorraine’s history is steeped in <a href="https://www.earth.com/news/u-s-coal-ash-holds-tons-of-rare-earth-elements-worth-8-4-billion/" target="_blank" rel="noreferrer noopener">coal</a> and steel. Many mines closed decades ago, leaving empty shafts and economic scars. 



Tapping white hydrogen offers a chance to revive the region with new jobs in drilling, pipeline work, and gas processing. Local officials already talk about training programs to shift miners to cleaner tasks.



Energy security matters, too. France imports much of the <a href="https://www.earth.com/news/natural-gas-isnt-as-clean-as-we-think/" target="_blank" rel="noreferrer noopener">natural gas</a> that feeds its industries. A domestic supply of hydrogen would shield buyers from price swings and geopolitical shocks, giving planners a dependable baseline fuel.



<h2 class="wp-block-heading" id="h-abundance-of-natural-hydrogen">Abundance of natural hydrogen</h2>



About midway through the project, lead scientist Dr. Jacques Pironon put the discovery into plain terms for Interesting Engineering.



“Our research suggests that natural hydrogen could be far more abundant than previously thought. If we can find efficient ways to extract and use it, we may have a powerful new tool in the fight against climate change," Dr. Pironon enthused.



“We need to understand the full potential of these hydrogen reservoirs and develop safe, efficient methods to extract them.” 



His caution reflects the field’s youth; few commercial wells exist, and regulators still draft rules to prevent leaks or <a href="https://www.earth.com/news/nearly-100-million-americans-exposed-to-contaminated-drinking-water/" target="_blank" rel="noreferrer noopener">groundwater problems</a>.



<h2 class="wp-block-heading" id="h-global-race-for-natural-hydrogen-begins">Global race for natural hydrogen begins</h2>



Other countries have noticed. Australia’s government earmarked funds to map its iron‑rich crust, while U.S. explorers study gas seeps in Kansas and Nebraska. 



Some researchers even ask whether white hydrogen replenishes continuously, like an underground fountain. If future tests show steady recharge, the fuel could edge closer to the definition of renewable.



Tech startups are also watching. Companies that design hydrogen turbines, storage tanks, and refueling stations see a chance to leapfrog the cost barriers that hold back wider adoption. 



Lower feedstock prices could make hydrogen trucks and ships more attractive than their diesel rivals.



<h2 class="wp-block-heading" id="h-what-happens-next">What happens next?</h2>



France has a long way to go with this jackpot, and the next move is a big one. Pilot wells will test flow rates, pressure behavior, and safety gear. 



Should those numbers hold, commercial extraction could start within a few years, turning Folschviller into a living laboratory for natural hydrogen. 



Success might prompt copycat surveys worldwide, nudging the energy mix toward a gas that arrives carbon‑free straight from the ground.



Learn more about natural hydrogen extraction in this full study by the journal <a href="https://www.nature.com/articles/s41467-024-55773-y" target="_blank" rel="noreferrer noopener">Nature</a>.



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World’s largest natural hydrogen deposit discovery is worth a staggering $184 billion

Folschviller, a quiet town in France’s Moselle region, just handed the energy world a surprise it didn’t see coming. Beneath land once dotted with coal pits lies an estimated 46 million tons of natural hydrogen, a cache large enough to stir fresh conversations about how the planet powers itself. The figure tops half of today’s yearly gray hydrogen output, yet it carries none of the pollution burden that shadows the industry’s status quo. The discovery lands at a moment when clean fuels are in high demand, but often too...

Stress in the workplace is a major public health issue that affects the mental and physical <a href="http://www.earth.com/news/everyday-activities-improve-well-being-and-boost-brain-health/">well-being</a> of people worldwide. A new study from the <a href="https://www.tsukuba.ac.jp/en/">University of Tsukuba</a> has found a very simple way to help relieve work-related stress, and the solution is in nature.

Led by Professor Shinichiro Sasahara, the team set out to investigate how taking walks in greenspaces such as parks and forests may affect an individual's sense of coherence (SOC), or the coping capacity that people use to deal with stressors in everyday life.

The concept of SOC was introduced in 1979 by Aaron Antonovsky to explain why some people become sick under stress while others stay healthy. 

People with strong SOC are known to have greater resilience to stress. The SOC scale is used to assess how people perceive life based on three key elements: meaningfulness - having a sense of purpose; comprehensibility - the ability to recognize and understand stress; and manageability - feeling equipped with the resources to solve problems. 

Previous studies have found that SOC scores are influenced by factors such as martial status, education, and physical fitness. 

For the current investigation, the researchers analyzed data on more than 6,000 Japanese workers between 20 and 60 years old. The experts found stronger SOC, and therefore greater resilience to work-related stress,  among people who regularly took walks in forests or greenspaces.

"SOC indicates mental capacities for realizing and dealing with stress," said Professor Sasahara. "With workplace stress as a focal issue, there's a clear benefit in identifying everyday activities that raise SOC. It seems we may have found one."

In many countries like Japan, urban greenspaces are increasing in popularity. This gives workers easier access to nature, and the research indicates that taking advantage of these spaces is a simple way to increase SOC and relieve work-related stress.

"Our study suggests that taking a walk at least once a week in a forest or greenspace can help people have stronger SOC," explained Professor Sasahara. "Forest/greenspace walking is a simple activity that needs no special equipment or training. It could be a very good habit for improving mental health and managing stress."

The study is published in the journal <a href="https://www.journals.elsevier.com/public-health-in-practice/">Public Health in Practice</a>.

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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Nature walks help relieve work-related stress

Stress in the workplace is a major public health issue...

Oceans absorbed a record amount of heat in 2020. Ocean temperatures reached a record high in 2020, according to an international team of scientists from 13 institutes around the world. The experts report that ocean temperatures from the surface <a href="http://www.earth.com/news/groundwater-has-a-larger-impact-on-ocean-chemistry-than-expected/">water</a> all the way down to a depth of 2,000 meters reached their hottest levels since 1955.

Study lead author Lijing Cheng is a professor in the Institute of Atmospheric Physics at the <a href="https://english.cas.cn/">Chinese Academy of Sciences</a>. 

"Over 90% of the excess heat due to global warming is absorbed by the oceans, so ocean warming is a direct indicator of global warming - the warming we have measured paints a picture of long-term global warming," said Professor Cheng.

"However, due to the ocean's delayed response to global warming, the trends of ocean change will persist at least for several decades, so societies need to adapt to the now unavoidable consequences of our unabated warming. But there is still time to take action and reduce our emissions of greenhouse gases."

The investigation into ocean temperatures and salinity was focused on data from the World Ocean Database, which is overseen by the National Oceanic Atmospheric Administration. 

The analysis revealed that in 2020, the upper 2,000 meters of the world's oceans absorbed 20 more Zettajoules compared to 2019. This amount of heat is enough to boil 1.3 billion kettles.

"Why is the ocean not boiling? Because the ocean is vast. We can imagine how much energy the ocean can absorb and contain, and, when it's released slowly, how big the impact is," explained Professor Cheng.

The researchers found that other effects, including ocean salinity, were amplified in the hotter upper layer of the ocean. Marine life is threatened by both the heat and the increased salinity. 

"The fresh gets fresher; the salty gets saltier," said Professor Cheng. "The ocean takes a large amount of global warming heat, buffering global warming. However, the associated ocean changes also pose a severe risk to human and natural systems."

"Warmer oceans and a warmer atmosphere and also promote more intense rainfalls in all storms, and especially hurricanes, increasing the risk of flooding. Extreme fires like those witnessed in 2020 will become even more common in the future. Warmer oceans also make storms more powerful, particularly typhoons and hurricanes."

The researchers will continue to monitor rising ocean temperatures and the subsequent effects on salinity and stratification.

"As more countries pledge to achieve 'carbon neutrality' or 'zero carbon' in the coming decades, special attention should be paid to the ocean," said Professor Cheng. 

"Any activities or agreements to address global warming must be coupled with the understanding that the ocean has already absorbed an immense amount of heat and will continue to absorb excess energy in the Earth's system until atmospheric carbon levels are significantly lowered."

The study is published in the journal <a href="https://www.springer.com/journal/376">Advances in Atmospheric Sciences</a>.

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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Oceans absorbed a record amount of heat in 2020

Oceans absorbed a record amount of heat in 2020. Ocean...

In a new study from <a href="https://www.psu.edu/">Penn State</a>, researchers have found that climate change reduces the abundance and diversity of wild bees. The experts report that wild bees are more affected by climate change than by disturbances to their <a href="http://www.earth.com/news/bumblebees-in-low-quality-habitats-are-more-susceptible-to-disease/">habitats</a>.

Furthermore, the research suggests that addressing land-use issues will not be enough to protect wild bees.

"Our study found that the most critical factor influencing wild bee abundance and species diversity was the weather, particularly temperature and precipitation," said Professor Christina Grozinger. 

"In the Northeastern United States, past trends and future predictions show a changing climate with warmer winters, more intense precipitation in winter and spring, and longer growing seasons with higher maximum temperatures. In almost all of our analyses, these conditions were associated with lower abundance of wild bees, suggesting that climate change poses a significant threat to wild bee communities."

According to Melanie Kammerer, few studies have considered the effects of both climate and land use on wild bees.

"We thought this was an oversight because, like many organisms, bees are experiencing habitat loss and climate change simultaneously," said Kammerer. "By looking at both factors in the same study, we were able to compare the relative importance of these two stressors."

The investigation was focused on a 14-year dataset from the United States Geological Survey that documented wild bee occurrences from more than 1,000 locations in Maryland, Delaware, and Washington, D.C. 

Based on this data, the researchers examined how different bee species respond to land-use and climate changes.

"To really understand the effects of weather and climate, particularly as weather patterns become more variable with climate change, we need to use these very large, long-term data sets," said Grozinger. "We hope that our study, and others like it, will help encourage the collection and integration of these data sets for future research."

The team used land cover maps and spatial models to analyze the landscape surrounding each of the sampling locations. The experts also used machine learning to identify the most important climate variables that affect wild bees. 

"We found that temperature and precipitation patterns are very important drivers of wild bee communities in our study, more important than the amount of suitable habitat or floral and nesting resources in the landscape," said Kammerer.

According to Grozinger, different bee species were most impacted by different weather conditions. For example, areas with more rain had fewer spring bees, she explained.

"We think the rain limits the ability of spring bees to collect food for their offspring," said Grozinger. "Similarly, a very hot summer, which might reduce flowering plants, was associated with fewer summer bees the next year."

"This result coincides with studies showing that, with earlier spring onset, overwintering adults had higher pre-emergence weight loss and mortality and shorter life span post-emergence."

Kammerer noted that these weather changes will likely worsen in the coming years.

"In the future, warm winters and long, hot summers are predicted to occur more frequently, which we expect will be a serious challenge to wild-bee populations," said Kammerer. 

"We are just beginning to understand the many ways that climate influences bees, but in order to conserve these essential pollinators, we need to figure out when, where and how changing climate disrupts bee life cycles, and we need to move from considering single stressors to quantifying multiple, potentially interacting pressures on wild-bee communities."

The study is published in the journal <a href="https://onlinelibrary.wiley.com/journal/13652486">Global Change Biology</a>.

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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Climate change is the biggest threat to wild bees

In a new study from Penn State, researchers have found...

The <a href="http://www.earth.com/news/tropical-birds-handle-heat-stress-much-better-than-expected/">stress</a> hormone cortisol may be a good indication of whether newborn deer will survive, according to a new study from <a href="https://www.psu.edu/">Penn State</a>. The researchers found that levels of cortisol in the saliva of newborn white-tailed deer fawns can be used to predict mortality. 

"We think the hormone offers a way to evaluate factors in the environment that affect fawns, such as disease, but are difficult to evaluate when just looking at a carcass that has been picked over by predators," said Professor Duane Diefenbach. "By then, it's impossible to be certain what truly caused the fawn's demise."

Professor Diefenbach is the leader of the Pennsylvania Cooperative Fish and Wildlife Research Unit in the College of Agricultural Sciences. Through two studies of fawn mortality conducted in 2000 and 2015, Diefenbach gained a unique perspective on the impact of predators. 

For the current investigation, the researchers analyzed salivary cortisol concentrations in 19 newborn fawns. Study lead author Tess Gingery, a research technologist in the Department of Ecosystem Science and Management, explained why it was crucial to collect the saliva samples quickly. 

"We know from research performed on adult deer at another university that it takes 20 minutes from the moment the stress hormone cortisol is released from the brain into the body that it shows up in their saliva," said Gingery. "We needed to measure the fawn's 'baseline' cortisol levels, before the stress from capture and being handled kicked in. So, we sopped up saliva with swabs as soon as we could."

There is a lot of evidence that suggests cortisol can be bad for a human's survival, body condition, brain development, and immune system, noted Gingery. The researchers theorized that high cortisol concentrations could also predict the survival of newborn fawns, and the data supported this theory. 

"Fawns that had higher cortisol concentrations in their saliva had lower survival, but we don't know if the high cortisol concentrations caused higher mortality or not," said Gingery. 

"It could be that elevated stress hormones reflect a fawn's experience with stressful situations rather than causing fawn mortality. For example, a fawn may be starving, which can elevate stress hormone levels, and the lack of food kills the fawn rather than the elevated stress hormone levels."

The findings show that predators are not the only major threat to fawns. According to Professor Diefenbach, it turns out that cortisol levels were higher in fawns tested in the central Pennsylvania study area compared to samples collected in northern Pennsylvania. However, the numbers of predators like coyotes and bears, as well as predation rates, are known to be lower in the state's central region. 

"This research could explain why Delaware - which has zero predators - found similar fawn-survival rates to Pennsylvania in a recent study," said Professor Diefenbach. "Factors other than predation, such as physiological responses like the cortisol we measured, may influence mortality more than predation. As such, the heavy focus on predation in fawn research may be misguided."

The study is published in the journal <a href="https://onlinelibrary.wiley.com/journal/17494877">Integrative Zoology</a>.

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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

&nbsp;

Cortisol levels can be used to predict mortality in newborn deer

The stress hormone cortisol may be a good indication of...

According to a new study from the <a href="https://www.agronomy.org/">American Society of Agronomy</a>, harvested fields that are covered with corn residue in the late fall may seem useless, but these husks, kernels, and cobs are actually a valuable resource for cattle grazing. The researchers identified a positive association between cattle grazing corn litter and <a href="http://www.earth.com/news/soybean-diseases-cause-major-economic-losses-in-the-u-s/">soybean</a> yields.

The research shows that corn residue can increase farm income and provide affordable cattle feed. Lead author Morgan Grabau studies the interactions between cattle grazing and crop productivity. 

"Corn residue is an under-used resource. Only 15% of the corn residue acres in the central U.S. are grazed," said Grabau.

When it comes to cattle grazing corn residue, many farmers are concerned about soil compaction. If the soil is compacted too much by cattle, future crops may not be able to grow well. 

In the past, Grabau's team has shown that compaction is not too bad during fall and winter grazing. This is because when the soil is dry and frozen, it resists stamping cattle hooves. "My research was focused on the effect of grazing in the spring when the soil is thawed and wet," explained Grabau.

The team investigated two different types of grazing systems. In one system, the researchers let a small number of cattle graze corn fields for 45 days beginning in mid-February. The second system tripled the number of cattle, yet cut grazing time to just 15 days in March. In other words, the total amount of grazing was equal while the time spent on wet fields varied, which could affect how the soil responds to being trampled.

The analysis was based on farmland in Nebraska, where around half of the corn fields are grazed after harvest. The researchers measured various factors that contribute to soil compaction, and also measured soybean yields during the season after cattle grazing. This experiment was repeated over two years.

"Much like previous fall grazing studies, minimal effects were seen on soil properties and yield due to spring grazing, regardless of the number of cattle and area grazed," said Grabau. 

In addition, highly concentrated grazing for just 15 days was found to increase soybean productivity. "This yield increase could be due to more residue removed, causing warmer soil temperatures for plants to grow."

The cattle did cause some soil compaction, but the effects were limited to the surface level of fields. "Compaction isn't permanent," said Grabau. "Soil can loosen up again as it dries and saturates over and over, and microbial activity in the soil also reduces compaction."

The experts found that soybean seedlings were able to establish themselves in the soil after cattle grazing even with some surface compaction present.

"Even when we created a worst-case scenario, grazing in the spring when the ground was wet, compaction was minimal and subsequent soybean yields were not negatively affected," said Grabau. She noted that fall and winter grazing is probably the best solution, but farmers should not be afraid of grazing cattle in the spring.

"The integration of crops and livestock is a beneficial production system. Grazing cattle on corn residue can be a great way to make even more food for human consumption from corn fields, as both the corn grain and plant residue can be used as feed for livestock."

The research was presented at the 2020 <a href="https://www.acsmeetings.org/">ASA-CSSA-SSSA Annual Meeting</a>.

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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Corn residue is a valuable resource for cattle grazing

According to a new study from the American Society of...

Conservationists widely believe that the popularity of giant pandas, and the protection of their mountainous ranges, creates benefits that extend to neighboring <a href="http://www.earth.com/news/animals-needed-sleep-before-they-even-had-brains/">animals</a>. However, a new study from <a href="https://msu.edu/">Michigan State University</a> has identified several species, including the Asiatic black bear, that experience more losses than gains from conservation strategies designed to protect giant pandas.

"The popularity of giant pandas, as of the popularity of other beloved threatened animals across the world, has generated tremendous advances in protecting forests and other fragile habitats," said study co-author Jianguo "Jack" Liu.

"But this is an important reminder that it can't assume that what's good for a panda is automatically good for other species. Different species have specific needs and preferences."

The researchers used camera trap data collected throughout mountain ranges to investigate how animals were using protected areas, as well as how they are faring under the umbrella of policies used to shield giant pandas.

In 2016, the conservation status of the giant panda officially improved from "endangered" to "threatened." The study revealed that while the pandas are doing well, some of their neighbors are not as fortunate. 

Three of the eight species examined for the study - the Asiatic black bear, the forest musk deer, and the Chinese serow - seem to have suffered significant habitat loss under panda-centric habitat management. 

Giant pandas are very particular about where they live. They require lots of bamboo, a gentle slope, and no contact with humans. The habitats designated for pandas cater to these needs, but do not necessarily meet the requirements of the animals that share these areas.

Study first author Fang Wang noted that earlier efforts at tracking how a broader range of animals fared were handicapped by turning a blind eye to different habitat preferences, and not spotting potentially different habitat trends of other animals. The researchers said that the forests and shrublands in lower elevations next to the habitats that best serve pandas could be better for bears and deer.

"China has made a tremendous achievement in establishing giant panda nature reserves, and now we're learning that one size does not fit all," said Wang. 

"China as well as other countries that face similar conservation challenges have the opportunity to move forward from rescuing single species to protecting animal communities and ecosystems."

The study is published in the journal <a href="https://www.journals.elsevier.com/biological-conservation">Biological Conservation</a>.

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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

The popularity of giant pandas does not protect their neighbors

Conservationists widely believe that the popularity of giant pandas, and...

A new study from the <a href="https://www.univie.ac.at/en/">University of Vienna</a> has found that most native species are locally vanishing from the eastern region of the Mediterranean. At the same time, non-native tropical species are thriving. 

Along the coastline of Israel, which is one of the warmest areas of the Mediterranean Sea, most marine species have been gradually approaching the limits of their heat tolerance. The study shows that rising temperatures have now exceeded a tolerable heat threshold, and have warmed beyond what native species can handle. 

The investigation, led by Paolo Albano, was focused on the local extinctions of mollusks, including snails, clams, and mussels. Based on empty shells that have accumulated across the seafloor, the researchers reconstructed the historical species diversity of the Israeli coastline.

The study revealed that shallow habitats at scuba diving depths have been affected most by global warming. Here, the researchers were not able to find living individuals of up to 95 percent of the species whose shells were found in the sediments.

The results of the analysis suggest that most of the local extinctions have occurred in the last few decades. Furthermore, most of the mollusks that were found alive can no longer grow enough to reproduce. The experts said this is a clear sign that the biodiversity collapse will continue further.

By contrast, the warm waters in the Eastern Mediterranean are very suitable habitats for tropical species that arrive from the Suez Canal. These animal can be found in large populations and their individuals are fully fit to reproduce.

"For anyone accustomed to snorkel or dive in the Mediterranean, the underwater scenario in Israel is unrecognizable: The most common species are missing, while in contrast tropical species are everywhere," explained the researchers.

Temperatures in the Mediterranean Sea will continue to rise, regardless of how much carbon dioxide emissions are limited today. This means that the biodiversity collapse will continue to spread to the west and will intensify. 

Intertidal organisms, which are more adapted to temperature extremes, will continue to persist - at least to some degree.

"But the future is dim unless we immediately act to reduce our carbon emissions and to protect marine habitats from other pressures which contribute to biodiversity loss," said Albano. "The changes that already occurred in the warmest areas of the Mediterranean may not be reversible, but we would be able to save large parts of the rest of the basin."

"These results came from the cooperation of scientists with very different backgrounds," said study co-author Martin Zuschin. "In particular, the cooperation between ecologists and palaeontologists is providing unique new views on how humankind is impacting biodiversity."

The study is published in the journal <a href="https://royalsocietypublishing.org/journal/rspb">Proceedings of the Royal Society B: Biological Sciences</a>.

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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Native species are vanishing in the Eastern Mediterranean

A new study from the University of Vienna has found...

In a new study from <a href="https://www.ucsc.edu/">UC Santa Cruz</a>, experts have discovered that groundwater has a much greater impact on ocean chemistry than what was expected. Even though groundwater flows into <a href="http://www.earth.com/news/antarctic-icebergs-affect-seawater-and-ocean-currents-far-from-the-continent/">seawater</a> along coastlines all over the world, its contribution to the chemical properties of the ocean has been largely overlooked. 

The findings have implications for global models of biogeochemical cycles and for the interpretation of isotope records of Earth's climate history.

"It's really hard to characterize groundwater discharge, so it has been a source of uncertainty in the modeling of global cycles," said study first author Kimberley Mayfield. "It took a large effort by researchers around the world who came together to make this happen."

The investigation was focused on five key elements including lithium, magnesium, calcium, strontium, and barium. The researchers measured the concentrations and isotope ratios in coastal groundwater at 20 sites around the world, and used previously published data from additional sites.

"Those elements are important because they come from the weathering of rocks, and weathering of silicate rocks accounts for a huge uptake of carbon dioxide from the atmosphere over long time scales," explained Mayfield.

According to study co-author Adina Paytan, a research professor in UCSC's Institute of Marine Sciences, groundwater is an important source of inputs to the oceans, but has been easy to ignore because it is unseen and hard to measure.

"This is the first global assessment of groundwater discharge for most of these elements," said Professor Paytan. "This information is useful for our understanding of how weathering of rock is related to climate, not only in the present but also in the past."

The researchers estimated that up to 16 percent of these elements are entering the sea through groundwater. The results also showed that the isotopic composition of groundwater discharge can be different from that of rivers.

"The composition of groundwater discharge is very dependent on coastal geology, whereas river water is more influenced by the interiors of continents," said Mayfield. "It's important to recognize that groundwater makes a difference globally, and now that we have this large data set, people can keep improving it with more sampling and develop better models of global groundwater discharge."

The study is published in the journal <a href="https://www.nature.com/ncomms">Nature Communications</a>.

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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Groundwater has a larger impact on ocean chemistry than expected

In a new study from UC Santa Cruz, experts have...

Greater conservation efforts are needed to protect harbor porpoises in the North Sea, according to a study published by <a href="https://www.frontiersin.org/">Frontiers</a>. The researchers investigated how this particular porpoise population has been handling the stress of human disturbances, such as heavy ship traffic, <a href="http://www.earth.com/news/indigenous-fishing-practices-are-needed-to-revive-salmon-fisheries/">fisheries</a>, offshore oil rigs, and wind farms.

The harbor porpoise is known as a "sentinel species," which can be studied to measure the overall health of an ecosystem and identify potential risks. The researchers found that the porpoises are in a state of steady decline in the North Sea.

"The trend seen here is concerning," said study co-author Dr. Anita Gilles. What is especially troubling is the fact that harbor porpoises have experienced a substantial decline in protected areas, such as the Special Area of Conservation (SAC) Sylt Outer Reef. These areas are specifically designated to keep marine life safe. In that particular region, the harbor porpoise population declined by an average of 3.79 percent per year. The experts determined that by contrast, the population increased to the south, which may signify a shift in distribution. 

To estimate the numbers of harbor porpoises, Dr. Gilles and her colleagues surveyed small parts of the sea at a time and then conducted aerial surveys. 

"Knowing the abundance of a population is at the heart of ecology, but extremely challenging for mobile species in a rapidly changing marine environment like the North Sea," said Dr. Gilles. 

Study co-author Sacha Viquerat developed an innovative framework for trend analysis, which was based on two decades of surveys. 

"After almost 20 years of systematic data collection... we now have a wealth of data at hand," said Dr. Gilles. This data can help drive legislation to aid conservation efforts. "Abundance, distribution, and trends are key for EU and other legislative instruments, and for marine conservation management in general."

Study co-author Dominik Nachtsteim is hopeful that the survey design and data analysis methods can be used in other regions. This study was limited to the German North Sea, meaning that population counts and observed trends in the broader North Sea are missing.

The experts theorize that the steady decline of harbor porpoises in the North Sea is due to an increase in human activities, a change in prey availability, a distribution shift. "Most probable, it is a mixture of different causes and cumulative effects," said Dr.. Gilles."We urgently need more research into the drivers of change."

The study is published in the journal <a href="https://www.frontiersin.org/journals/marine-science">Frontiers in Marine Science</a>.

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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Porpoises are steadily declining in the German North Sea

Greater conservation efforts are needed to protect harbor porpoises in...

Scientists at the <a href="https://www.ubc.ca/">University of British Columbia</a> are working to understand how gill development limits fish growth. The temperature of <a href="http://www.earth.com/news/the-oceans-absorb-much-more-carbon-than-previously-thought/">oceans</a> and fresh waters, as well as the concentration of dissolved oxygen, have much more influence on the growth and reproduction of fish than the distribution of their prey.

Daniel Pauly is the principal investigator of the Sea Around Us initiative at UBC's Institute for the Oceans and Fisheries. He argues that scientists need to avoid attaching human attributes to fish and start looking at their unique biology and constraints in a different way. 

Pauly has proposed the Gill Oxygen Limitation Theory (GOLT), which explains kthat as fish grow, the surface area of their gills cannot keep up with the oxygen requirement of their bodies.

The theory emphasizes that gills, which are the respiratory organs of fish, are surfaces through which water must flow. Gill surface area grows in two dimensions, length and width, but struggles to keep up with bodies that grow in three dimensions, length, width, and depth. Therefore, as fish get bigger, they have less gill surface area and their gills provide less oxygen per unit volume or weight.

"The problem is that many colleagues fail to understand the basic geometry of gills, and argue that, as fish grow bigger and, thus, require more oxygen, they can just grow larger gills," said Pauly. "But they can't pack their heads full of gills because, if that were to happen, water wouldn't be able to flow through."

The research indicates that the gill issue is a constraint that fish can evolve past. Once the gills reach a threshold where they cannot support a bigger body, the fish stop growing.

"This is particularly important in the context of climate change because warm waters contain less oxygen. This means that gills have less oxygen to supply to bodies that require more oxygen at higher temperatures," said Pauly. "This double whammy occurs because fish cannot maintain their body temperature constant, and higher water temperatures accelerate their metabolisms."

In rising water temperatures, with less oxygen available, fish are forced to stop growing at a smaller size. This has important implications for fisheries and aquaculture.

Pauly acknowledges that one of the limitations of the Gill Oxygen Limitation Theory is that it is mainly qualitative and makes few quantitative predictions. He would like to address this, as well as the fact that the theory does not deal with bioenergetics and the role food plays in the life of fish.

"Food is necessary for life and the GOLT is structured around the notion that there is enough food but what if there isn't enough food? The relationships between food and oxygen will have to be studied, too."

The study is published in the journal <a href="https://advances.sciencemag.org/">Science Advances</a>.

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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Gill development and water temperatures limit fish growth

Scientists at the University of British Columbia are working to...

Why have crocodiles changed so little over the last 200 million years? Crocodiles today look very similar to those that lived during the Jurassic period alongside the <a href="http://www.earth.com/news/when-the-dinosaurs-vanished-forests-expanded-and-thrived/">dinosaurs</a>, and they have also not diversified much since that time. 

In a new study from the University of Bristol, scientists have determined that a "stop-start" pattern of evolution, governed by environmental change, may explain why crocodiles have changed so little over millions of years. 

There are only 25 species of crocodiles alive today. Other animals, like birds and lizards, have branched off into thousands of species in the same time frame. 

The researchers pointed out that there were also types of ancient crocodiles that vanished, including giants as big as dinosaurs, plant-eaters, fast runners, and serpentine forms that lived in the sea. 

In their study, the scientists explain how crocodiles follow a pattern of evolution known as "punctuated equilibrium." This means that they evolve slowly, but this rate picks up speed occasionally due to environmental changes.

In particular, the researchers found that the evolution of crocodiles is accelerated in a warmer climate, and their body size increases. 

"Our analysis used a machine learning algorithm to estimate rates of evolution. Evolutionary rate is the amount of change that has taken place over a given amount of time, which we can work out by comparing measurements from fossils and taking into account how old they are," said study lead author Dr. Max Stockdale.

"For our study we measured body size, which is important because it interacts with how fast animals grow, how much food they need, how big their populations are and how likely they are to become extinct."

The findings show that a slow rate of evolution is responsible for the limited diversity of crocodiles. It seems that the crocodiles arrived at a body plan that was very efficient and versatile enough that they did not need to change it in order to survive.

Such versatility could explained how crocodiles survived the meteor impact and subsequent environmental changes that killed the dinosaurs. 

Crocodiles cannot control their body temperature and require warmth from the environment. The climate during the Jurassic period was warmer than it is today, which likely supported the diverse types of crocs that no longer exist. 

"It is fascinating to see how intricate a relationship exists between the Earth and the living things we share it with," said Dr. Stockdale. "The crocodiles landed upon a lifestyle that was versatile enough to adapt to the enormous environmental changes that have taken place since the dinosaurs were around."

Next, the Bristol team will investigate why some types of prehistoric crocodile died out, while others persisted.

The study is published in the journal <a href="https://www.nature.com/commsbio">Communications Biology</a>.

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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Crocodiles have not changed much in 200 million years

Why have crocodiles changed so little over the last 200...

According to a new study led by the <a href="https://iiasa.ac.at/">International Institute of Applied Systems Analysis</a>, human activities are transforming grasslands from a natural carbon sink into a source of greenhouse gas emissions. The researchers describe how grasslands used by humans have changed our <a href="http://www.earth.com/news/mangrove-forests-in-oman-were-wiped-out-by-climate-change/">climate</a> over the last centuries.

Grasslands absorb and release carbon dioxide (CO2), and emit methane (CH4) from grazing livestock. They also emit nitrous oxide (N2O) from soils, and these emissions increase when manure or mineral fertilizers are introduced. 

Despite their significance, however, little is known about how the fluxes of these three greenhouse gases have contributed to climate change in the past. The researchers also wanted to compare the gas cycling and climate effects of managed pastures to that of natural grasslands.

To investigate, the experts quantified the changes in carbon storage and greenhouse gas fluxes in natural and managed grasslands between 1750 and 2012. 

The findings illustrate the important climate cooling service provided by sparsely grazed areas, as well as the growing contribution to climate warming from continuously grazed areas. These intensively exploited grasslands are associated with more CH4 and N2O emissions.

"We built and applied a new spatially explicit global grassland model that includes mechanisms of soil organic matter and plant productivity changes driven by historical shifts in livestock and the reduction of wild grazers in each region," said study lead author Jinfeng Chang. "This model is one of the first to simulate the regional details of land use change and degradation from livestock overload."

"We also looked at the effect of fires, and soil carbon losses by water erosion; CH4 emissions from animals; N2O emissions from animal excrement, manure, and mineral fertilizer applications; and atmospheric nitrogen deposition."

The study revealed that CH4 and N2O emissions from grasslands increased by a factor of 2.5 since 1750. This is due to higher emissions from livestock that have more than compensated for reduced emissions from the shrinking number of wild grazers. 

The ability of grasslands to absorb carbon has grown over the last century over sparsely grazed and natural grasslands, but these gains are outweighed by emissions from managed pastures. Over the last decade, grasslands intensively managed by humans have become a net source of greenhouse gas emissions.

"Our results show that the different human activities that have affected grasslands have shifted the balance of greenhouse gas removals and emissions more towards warming in intensively exploited pastures, and more towards cooling in natural and semi-natural systems," explained study co-author Thomas Gasser. "Coincidently, until recently the two types of grasslands have almost been canceling each other out."

"However, the recent trends we see towards the expansion of pasture land and higher livestock numbers lead us to expect that global grasslands will accelerate climate warming if better policies are not put in place to favor soil carbon increases, stop deforestation for ranching, and develop climate-smart livestock production systems."

"In the context of low-warming climate targets, the mitigating or amplifying role of grasslands will depend on a number of aspects," concluded study co-author Philippe Ciais. "This includes future changes in grass-fed livestock numbers; the stability of accumulated soil carbon in grasslands; and whether carbon storage can be further increased over time or if it will saturate, as observed in long-term experiments."

The study is published in the journal <a href="https://www.nature.com/ncomms">Nature Communications</a>.

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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Grasslands are turning into a source of harmful emissions

According to a new study led by the International Institute...

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



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

Remote sensing will revolutionize the way we monitor trees

[sendtonews key="EjmSP20gQK-2593093-12187" type="single"] Today's Video of the Day from NASA...

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



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



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



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



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



Video Credit: ESA&nbsp;&nbsp;



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



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

Lesotho: Africa's "Kingdom in the Sky"

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



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



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



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



Video Credit: NASA Goddard



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



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

Wetlands are a major source of methane emissions

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

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



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



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



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



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



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



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



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



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



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



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

The rapid retreat of the Columbia Glacier

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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

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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



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.

Tracking changes in Earth's water cycle

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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



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.

Mysterious "spoke season" captured on Saturn

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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

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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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Today's Video of the Day from the <a href="http://www.esa.int/">European Space Agency</a> features Qeshm Island in the Strait of Hormuz. This strait provides the only sea passage from the Persian Gulf to the open ocean.



Qeshm is separated from the Iranian coast by the Clarence Strait, also known as Khuran.&nbsp;The Hara Forest Protected Area is a network of shallow waterways and forest located between the island and the mainland. This protected region is home to sea turtles, snakes, and more than 150 species of migrating birds.



Qeshm is famous for its wide range of&nbsp;ecotourist&nbsp;attractions, such as the&nbsp;Hara marine forests. According to environmentalists, about 1.5 percent of the world birds and 25 percent of Iran's native <a href="https://www.earth.com/news/female-hummingbirds-avoid-sexual-harassment-by-looking-like-males/">birds</a> annually migrate to the forests, which are the first national geo park in Iran.



Tourists are also drawn to the island to see an age-old Portuguese&nbsp;fort, historic mosques, the&nbsp;Seyyed Mozaffar&nbsp;and&nbsp;Bibi Maryam&nbsp;shrines, and the "Valley of Stars."



The average temperature on the island is 81 degress and the region is often hot and humid. From June to August, the island is described as being oppressively hot. The ideal time to visit is during the winter season. 



Video Credit: ESA&nbsp;



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



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

Qeshm Island in the Strait of Hormuz

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Inhambane Bay in southeast Mozambique.&nbsp;



"Inhambane Bay is a deep inlet into which the small Mutamba River flows," says ESA. "On one side of the bay lies the historical city of Inhambane, capital of the Inhambane Province, while the sister city of Maxixe, the economic capital of Inhambane, sits across from it. The province is the second largest grower of cashews, after Nampula, and it also produces coconut and citrus fruits."



The beaches of Barra and Tofo are popular with tourists. There are also coral reefs along the long coastline of Inhambane, making it an ideal destination for scuba diving and snorkeling.



"Mozambique’s extensive coastline heightens the country’s vulnerability to tropical cyclones that develop in the Indian Ocean as well as storm surge flooding," says ESA.



"More than half of the population lives in low lying coastal areas, putting communities at risk. Inhambane Bay was dangerously close to where Cyclone Idai made landfall in 2019 causing widespread destruction to the country."



Video/ Image Credit: ESA



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



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

Inhambane Bay in southeast Mozambique

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency </a>&nbsp;features the Kangerlussuaq Glacier, one of the largest tidewater outlet glaciers in Greenland. The glacier is located on the east coast of the Greenland ice sheet.



As human-induced climate change continues to drive up temperatures, global ice loss is accelerating at an alarming rate. ESA reports that, over the past decade alone, 3.5 trillion tons of ice have melted from the Greenland ice sheet. This is enough to cover the UK with meltwater 15 meters deep.



Based on satellite imagery, researchers determined that Kangerlussuaq entered a new phase of rapid retreat and acceleration in 2017. In their study, published in <a href="https://www.frontiersin.org/articles/10.3389/feart.2019.00123/full">Frontiers in Earth Science</a>,&nbsp; the experts report that the glacier's ice front is now at its most retreated position since the early 20th century.



"Given Kangerlussuaq’s previous impacts on both the magnitude and pattern of ice sheet wide mass loss, we predict that its new phase of retreat, acceleration and thinning will markedly enhance the south-east region’s contribution to increasing discharge from the ice sheet," wrote the study authors.&nbsp;&nbsp;



"More broadly, accurate forecasting of the ice sheet’s contribution to sea level rise will require a deeper understanding of, and responses to, these non-linear ice dynamic processes."



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



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.

Kangerlussuaq Glacier on the Greenland ice sheet

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> describes the complex relationship between ocean and climate. ESA's Climate Change Initiative will help us understand how oceans influence the climate and how climate change is impacting the oceans.&nbsp;



"Earth’s oceans are huge heat stores, soaking up 93% of the excess heat from human activity over the past 70 years. Ocean currents redistribute heat around the planet, from the Equator to the poles. Where this ocean heat goes influences weather patterns and regional climate," explains ESA.



"As well as absorbing heat, oceans are a natural carbon sink, absorbing a quarter of carbon dioxide emissions from human activity. This has led to the acidification of ocean water, threating marine life."



The amount of heat and carbon dioxide soaked up by the ocean depends on specific variables, including phytoplankton, temperatures, waves, salinity, and ice cover. Satellites can be used to measure these variables from space.



"From their unique vantage point, satellites provide key information for understanding the complexities of our planet and monitoring environmental issues," says 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



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.

Ocean heat influences regional climate

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> describes the importance of monitoring the shape of the sea surface, which is constantly changing. These observations have many applications, such as ship routing, <a href="https://www.earth.com/news/the-modem-ocean-is-a-tough-place-for-whales-to-survive/">ocean</a> current forecasting, and debris tracking.



"A project supported by the Discovery element of ESA’s Basic Activities recently investigated a new technique to measure sea surface topography very precisely," reports ESA.



"The technique involves looking at satellite navigation (GNSS) signals that have been reflected off of the sea surface at very low angles. At these so-called grazing angles, waves and surface roughness have very little impact on the reflection process; the sea surface acts as a very smooth mirror."



Estel Cardellach is the principal investigator at the Institute for Space Studies of Catalonia, who first submitted the idea for the project.



“In a mirror-like reflection the phase of the signal can be tracked – it is continuous," said Cardellach. "Different surface heights result in different phase measurements. It gives a very precise measurement of the surface altitude at a few centimetres’ precision.”



The researchers developed a GNSS receiver and set up an experiment in the Balaeric Islands to collect signals from the receiver that were reflected off the sea surface. Ultimately, these signals will provide improved measurements of the shape of the sea surface.



Image/ Video Credit: ESA



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

Monitoring the dynamic shape of the sea surface

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