Climate change conversations often focus on dramatic ecosystem collapse such as icebergs shearing off shelves or coral reefs bleaching overnight. These striking images capture our attention. 



But what if the real danger lies elsewhere? Not in the visible collapse - but in ecosystems quietly shifting out of balance.



<h2 class="wp-block-heading" id="h-magnetic-clues-about-ecosystems">Magnetic clues about ecosystems</h2>



A recent study led by Professor John Dearing at the <a href="https://www.southampton.ac.uk" target="_blank" rel="noreferrer noopener">University of Southampton</a> offers a new perspective. It shows that many ecosystems may collapse quietly, without obvious warning signs. This insight emerges from a surprising source: magnetic <a href="https://www.earth.com/news/earth-day-2025-what-were-really-fighting-for/">materials</a>.



Laboratory tests on ferromagnets helped researchers compare how systems respond to stress. 



Simple magnetic structures behaved like lakes turning abruptly green. But more complex ones - like rainforests - shifted gradually. This behavior echoes in nature, revealing how forests or ice sheets might quietly degrade over time.



“Some systems snap. Others sag,” said study co-author Professor Simon Willcock of <a href="https://www.rothamsted.ac.uk" target="_blank" rel="noreferrer noopener">Rothamsted Research</a>.



<h2 class="wp-block-heading" id="h-many-ecosystems-collapse-slowly">Many ecosystems collapse slowly</h2>



Traditional tipping point models assume abrupt shifts. But the study challenges that idea using new frameworks like Turing bifurcations. These models suggest that complex systems re-organize in stages. They may remain in partial balance while adjusting to rising stress.



This “soft tipping” aligns with real-world observations. Large <a href="https://www.earth.com/news/earth-day-2025-innovation-takes-the-lead-in-environmental-action/">ecosystems</a> often show slow responses and don’t follow classic tipping behaviors. 



For example, changes in lake water quality often happen linearly. Spatially complex areas like semi-arid landscapes shift in patterns, not dramatic breaks.



Importantly, the study warns against relying solely on early warning signals. These signs - like rising variance - may not appear in complex systems. Instead, change may already be happening silently.



<h2 class="wp-block-heading" id="h-ecosystem-collapse-and-recovery">Ecosystem collapse and recovery</h2>



In magnetic systems, changes in domain alignment under stress mirror <a href="https://www.earth.com/news/international-day-for-biological-diversity-2025-bonding-with-nature/">ecosystem</a> responses. Hard magnetic materials behave like simple systems - they change abruptly. Soft magnetic materials shift incrementally. The same applies to ecological systems.



A table in the study compares magnet terms like “coercive force” with ecological ideas like “tipping point.” These parallels reveal how much energy or stress is needed to push a system into collapse - or recovery.



This analogy also explains why recovery in some systems takes more energy than collapse. In magnets, reversing the field after a collapse takes extra effort. In nature, restoring a damaged ecosystem often requires sustained action and sometimes shock interventions.



<h2 class="wp-block-heading" id="h-slow-changes-are-deceptive">Slow changes are deceptive </h2>



According to the study, the speed at which stress is applied matters as much as its size. A rapid rise in temperature or pollution levels can cause systems to tip sooner. These <a href="https://www.earth.com/news/world-wildlife-day-2025-a-global-call-to-protect-nature/">systems</a> then show more resistance to recovery.



Magnetic tests support this. When magnetic fields change quickly, domains flip faster and require more force to reverse. Climate models show similar results. Fast warming leaves systems less time to adapt, pushing them closer to collapse.



“Slow changes can be deceptive,” said co-author Professor Roy Thompson.



<h2 class="wp-block-heading" id="h-subtle-signs-of-ecosystem-collapse">Subtle signs of ecosystem collapse</h2>



Viewing ecosystems at the wrong scale hides early damage. Forests may look healthy overall while many small areas degrade internally. These patches act like magnetic domains - each with its own threshold and response rate.



This fragmented degradation explains why early warnings are rare. It also means policymakers might miss the chance to act in time. Waiting for big, visible signs - like widespread forest death - may be too late.



“Our work suggests we may already be crossing tipping points without realising,” said Dearing.



<h2 class="wp-block-heading" id="h-recovery-may-still-be-possible">Recovery may still be possible</h2>



The study offers hope. Systems that collapse gradually may still recover - if we act early. Passive recovery, like letting nature heal itself, might help in some cases. But more often, active measures are needed.



Examples include reintroducing species, removing pollutants, or reshaping collapsed ecosystems. These interventions can push ecosystems back from collapse to a stable state, just like magnetic fields realign domains under the right conditions.



“This work flips the script on climate risk,” said Willcock. “If we wait for ecosystems to scream, we’ll have waited too long. The real danger is in systems that whisper while they fall apart.”



The full study is recently published in the journal <a href="https://www.cell.com/one-earth/fulltext/S2590-3322(25)00184-8" target="_blank" rel="noreferrer noopener">One Earth</a>.



-----



Like what you read? <a href="https://www.earth.com/subscribe/">Subscribe to our newsletter</a> for engaging articles, exclusive content, and the latest updates.&nbsp;



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



-----

Some ecosystems collapse quietly without warning signs 

Climate change conversations often focus on dramatic ecosystem collapse such as icebergs shearing off shelves or coral reefs bleaching overnight. These striking images capture our attention. But what if the real danger lies elsewhere? Not in the visible collapse - but in ecosystems quietly shifting out of balance. Magnetic clues about ecosystems A recent study led by Professor John Dearing at the University of Southampton offers a new perspective. It shows that many ecosystems may collapse quietly, without obvious warning signs. This insight emerges from a surprising...

After decades of poaching, northern white rhinos are on the brink of extinction. When the <a href="https://www.earth.com/news/northern-white-rhino-died/">last male of the species</a> died earlier this year, it seemed like a death knell. Only two females remain.

An ambitious new idea may save them.

While studying genetic samples from 232 rhinos, researchers at <a href="https://www.cardiff.ac.uk/">Cardiff University</a> and the <a href="http://www.univen.ac.za/">University of Venda</a> found that populations of northern and southern white rhinos have interbred as recently as 14,000 years ago. Previously, biologists thought the two species – which split more than 1 million years ago – could not breed.

“We've been able to establish that there was contact between northern and southern rhino populations throughout history,” Dr. Isa-Rita Russo of Cardiff University told the <a href="https://www.dailymail.co.uk/home/index.html">Daily Mail</a>. “This is an exciting find – genetic proof of contact between the populations suggests it may be possible to successfully rescue the northern white rhinoceros.”

In the wake of the discovery, the scientists are looking into creating embryos using both northern and southern white rhino DNA for in vitro fertilization.

Because the only two surviving northern white rhinos are not likely to live long enough to see the technique perfected, the embryos would be implanted in southern white rhino females.

Both northern and southern populations of the white rhinoceros have seen historical declines. However, the southern species is now the largest rhinoceros population on Earth; numbers of northern white rhinos have declined rapidly since the 1970s.

“It appears that the white rhinoceros is no stranger to low genetic diversity,” Dr. Yeshan Moodley of the University of Venda said. “Our results show that the species was subjected to several climatically and anthropogenically driven population declines, which would have reduced and compressed genetic diversity in the past.”

The study has been published in the journal <a href="http://rspb.royalsocietypublishing.org/content/285/1890/20181567">Proceedings of the Royal Society B</a>. Scientists are seeking donations through <a href="https://www.gofundme.com/makearhino">GoFundMe</a> to help support their research into white rhinos and IVF.

--

By <a href="mailto:kcathey@earth.com">Kyla Cathey</a>, <a href="http://earth.com">Earth.com</a> Contributing Writer

Scientists have new plan to save northern white rhinos

After decades of poaching, northern white rhinos are on the...

A <a href="http://www.earth.com/news/summer-weather-wildfires-flooding/">fire</a> that erupted 90 miles north of Sacramento on Thursday and consumed 70,000 acres of land by 10 a.m. the following morning has now exploded into the most destructive fire in the history of the state. Strong winds had carried the fire to the south and southwest overnight, and it quickly tripled in size.

By Friday, over 6,700 structures had been destroyed, nine people had lost their lives, and 35 people were missing. The Camp Fire, which almost completely wiped out the small town of Paradise, is just one of three major wildfires that are currently burning across the state of California.

The fast-moving wildfires have prompted thousands of residents to leave their homes, and some people were even forced to run on foot to escape the devastation in Paradise, where 80 to 90 percent of homes were destroyed. 

The Butte County Sheriff's Office revealed that four people were found dead in vehicles that had been overwhelmed by flames, and another body was discovered near the vehicles. 

According to <a href="https://cnn.com">CNN</a>, Paradise Mayor Jody Jones said: “There's really not much left. There are very few homes still standing and we've been in multiple different neighborhoods this afternoon.”


Meanwhile, in Southern California, the Woolsey Fire and the Hill Fire are being fueled by howling Santa Ana winds and evacuations have been ordered for thousands of people, including residents of Malibu. 

In a matter of hours, the Woolsey Fire exploded from 2,000 to 8,000 acres in Los Angeles and Ventura counties, where at least 75,000 homes have been evacuated. 

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer 


Image Credit: <a href="https://twitter.com/LASDHQ/status/1061073827021578240/photo/1?ref_src=twsrc%5Etfw%7Ctwcamp%5Etweetembed%7Ctwterm%5E1061073827021578240&amp;ref_url=https%3A%2F%2Fwww.accuweather.com%2Fen%2Fweather-news%2Fevacuations-expand-to-malibu-as-firefighters-battle-growing-woolsey-fire-in-southern-california%2F70006567">LA County Sheriff's Office</a>

California on fire: Three fires destroy homes, force evacuations

A fire that erupted 90 miles north of Sacramento on...

An island nation in the western Pacific Ocean has banned certain types of sunscreen in an effort to protect coral reefs. Palau, which is known as one of the best diving destinations on the planet, is now the first country to outlaw reef-toxic sunscreens. 

The state of Hawaii recently initiated a similar ban on the sale or distribution of any <a href="http://www.earth.com/news/sunscreen-chemicals-fish-embryos/">sunscreens</a> containing oxybenzone or octinoxate, which will take effect in January of 2021. Palau’s ban will also prohibit sunscreens that include these two chemicals, as well as eight other harmful substances that are commonly found in the products. 

The legislation follows scientific discoveries that reef-toxic chemicals in sunscreens accelerate coral bleaching, causing damage and ultimately death to corals when they are exposed. 

Sunscreen enters the water after moving through waste treatment facilities, but it is also directly deposited into the ocean when it is washed off swimmers. Overall, an estimated 14,000 tons of sunscreen enter the world's oceans each year. 

Due to soaring temperatures in 2016 and 2017, bleaching affected around half of the corals across Australia’s Great Barrier Reef. Scientists predict that 90 percent of the world’s coral will be threatened by 2030. 

According to the <a href="https://www.worldwildlife.org/">World Wildlife Fund</a> (WWF), an estimated one billion people depend on coral reefs for food and income. “If properly managed, reefs can yield around 15 tons of fish and other seafood per square kilometer each year,” said WWF. Countries like Palau depend on the tourism revenues generated by coral reefs. 

Beginning in 2020, sunscreen products that contain the banned chemicals will be confiscated at airports, and anyone caught selling the illegal sunscreens will be fined $1,000. Palau’s President Tommy Remengesau said the law is designed to “walk a smart balance between educating tourists and scaring them away.”

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Pacific island bans toxic sunscreens to protect coral reefs

An island nation in the western Pacific Ocean has banned...

Indo-Pacific coral reefs are a hotbed of marine diversity. From numerous fish species, to sponges, to turtles and other underwater organisms, <a href="http://www.earth.com/news/coral-reefs-sea-level-rise/">coral reefs</a> are not just a thing of beauty, but a scientific marvel. After researchers struggled for years to understand why coral reefs in the Central Indo-Pacific Ocean are so wealthy in diversity, <a href="https://www.arizona.edu/">University of Arizona</a> doctoral student Elizabeth Miller has found that time is the only explanation.

"People used to think that new species evolve more quickly in tropical marine areas, so you get the high diversity we see today very quickly," Miller said. "Instead, we found that diversity in the Central-Indo Pacific has slowly built over a long time." Her study, published in the journal Proceedings of the Royal Society of London, is the first to link species richness to time.

Miller discovered that, because coral reefs in Indo-Pacific waters exist in such a stable climate that has remained stable throughout long periods of time, species have been able to develop and stick around, thus leading to the biodiversity we see in these reefs today.

"This suggests that a region may need long-term stability to accumulate high species diversity," Miller explained. How long exactly has this taken? "According to our study, the magic number appears to be 30 million years."

She said that in the past 30 to 35 million years, the climate hasn’t changed much within the Central Indo-Pacific region, whereas other marine regions, like the Caribbean, have experienced fluctuations in climate and isolation. “Therefore,” Miller continued, “fewer colonizations and higher rates extinction of the lineages that were there previously - all those factors add up to less evolutionary time."

By using biogeographic reconstructions and a published evolutionary family tree of all spiny ray-finned fishes, which make up about 72% of all marine fishes and 33% of freshwater fishes, Miller and her team were able to unravel the history of the fish to explain the biodiversity.

“The general takeaway is that these patterns of high diversity may take tens of millions of years to arise, but can be wiped out in a few years by human impacts," John Wiens, senior author of the paper and a professor in the UA Department of Ecology and Evolutionary Biology, added. Wiens concluded that even though these species have been around for millions of years, they can disappear an instant due to human-induced climate change. He concluded, "The diversity that gets lost in the next few years may take tens of millions of years to get back."

--

By <a href="mailto:oliviagharvey24@gmail.com">Olivia Harvey</a>, <a href="http://earth.com">Earth.com</a> Staff Writer

Image Credit: Deborah Shelton

Time, and time alone, is responsible for coral reef diversity

Indo-Pacific coral reefs are a hotbed of marine diversity. From...

Climate change makes temperate forests more vulnerable to fire. Research from <a href="https://www.pdx.edu/">Portland State University</a> (PSU) has revealed that large-scale forest disturbances including wildfires, disease, and drought will continue to rise alongside <a href="http://www.earth.com/news/humans-driving-climate-change/">climate change</a>. The study will help experts to quantity not only the size and prevalence of such disturbances, but also their driving forces.

The investigation was focused on 50 protected areas, including national parks and the immediate surroundings. This particular dynamic allowed for a closer examination of climate-related disturbances versus those that were impacted by human land use. 

The study revealed that many temperate forests are dominated by small disturbances resulting from windstorms and cool, wet conditions. On the other hand, a strong link was also identified between high disturbance activity and warmer and drier climate conditions.

Outside of protected areas, disturbances were typically larger and less complex in shape than in protected areas. For example, man-made disturbances like logging are simpler in shape than the path of a wildfire, storm, or insect outbreak inside of a protected area. 

On the other hand, within landscapes affected by large-scale fires or outbreaks, the size and complexity of what occurs inside and outside the protected areas are more comparable.

Study co-author Andrés Holz is a professor of Geography at PSU. He explained that, with a warming climate, disturbances are expected to become larger and more severe in some temperate forests including those across the western United States. 

“Under the warmer conditions we have been seeing, it is likely that we're going to see a higher probability of areas that tend to have very big disturbances,” said Professor Holz. 

“Climate change is mimicking the footprint of disturbances in protected areas to what we are doing through land-use change outside of protected areas. Under warmer conditions, we might see more similarities between protected areas and their surroundings in some temperate forests globally.”

The study is published in the journal <a href="https://www.nature.com/ncomms/">Nature Communications</a>. 

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Paid for by <a href="http://earth.com">Earth.com</a>

Climate change makes temperate forests more vulnerable to fire

Climate change makes temperate forests more vulnerable to fire. Research...

Monarch butterfly populations in North Central Florida have been declining since 1985, and have dropped by 80 percent since 2005. 

Study co-author Jaret Daniels, an associate professor in the <a href="http://www.ufl.edu/">University of Florida</a>'s Department of Entomology and Nematology, said that this decrease can also be seen in the dwindling numbers of the <a href="http://www.earth.com/news/monarch-butterflies-rising-co2/">monarchs</a> in their overwintering grounds in Mexico. 

“It's alarming in a number of different ways,” said Professor Daniels. “This study shows the tight connection between monarchs and milkweed and highlights very dramatic losses in abundance in Florida that further confirm the monarch is declining.”

While the drivers of the decline are not clear, the researchers have found that shrinking milkweed populations and a rise in glyphosate use in the Midwest are contributing to the problem. Glyphosate is an herbicide often used to eliminate weeds that is deadly to milkweed - the monarchs' host plant. 

Less milkweed means less habitat for monarchs, said study co-author Ernest Williams, who is a professor emeritus of Biology at Hamilton College in New York.

“A broad pattern is that 95 percent of corn and soybean products grown in the U.S. are Roundup Ready crops that resist glyphosate,” said Professor Williams. “That has a national impact. What's really needed are patches of native vegetation and nectar sources without pesticides. It's not just for monarchs but all pollinators.

In the longest localized study on monarchs to date, a research team examined milkweed plants for caterpillars and captured adult butterflies for 37 years - a time period that spanned more than 140 generations of monarchs. The study took place in an herbicide-free cattle pasture in Cross Creek, about 20 miles southeast of Gainesville.

The experts discovered that the springtime departure of monarchs from Mexico is timed to coincide with optimal growth of milkweed in the southeastern United States. 

If monarchs get to their breeding grounds too early, their host plants may be killed by frost. To maximize their offspring's chances of survival, the butterflies must time their arrival within a three-week window, said Professor Daniels. This is an incredible achievement for insects with life spans between six and eight weeks.

The study is published in the <a href="https://www.tandfonline.com/loi/tnah20">Journal of Natural History</a>. 

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Monarch butterfly populations drop by 80 percent in Florida

Monarch butterfly populations in North Central Florida have been declining...

Of the many methods developed to slow down <a href="http://www.earth.com/news/bitcoin-growth-global-warming/">global warming</a>, some scientists believe that “cloud thinning” may actually show some promise. The strategy would be used to shoot powder over cirrus clouds, which would thin out their coverage and alter their radiative effects over Earth.

While this would have some impact on rainfall, the effects would be less significant compared to other plans of cooling the planet, according to the experts. 

Many of the proposed geoengineering techniques come with dangerous consequences, such as changes in precipitation that could trigger major droughts across some regions. Scientists have analyzed the geoengineering options that are currently available, and have determined that cloud thinning may be one of our best bets. 

The study authors believe that cloud thinning would cool the planet without triggering significant precipitation changes. The researchers, who are based at <a href="https://www.zju.edu.cn/english/">Zhejiang University</a> in China, said that by reducing the coverage of wispy, high-altitude cirrus clouds, it could be possible to reduce global warming.

“Broadly speaking, I think cirrus cloud thinning, if it works in reality, would be preferable to stratospheric aerosol injections,” study co-author Long Cao told <a href="https://www.newscientist.com/">New Scientist</a>. “It seems the known side-effects of cirrus cloud thinning are less than stratospheric aerosol injection and marine cloud brightening.”

The team is also exploring the concept of injecting aerosols into the stratosphere to “deflect more sunlight back to space,” as well as the option of seeding marine stratocumulus clouds in a strategy known as “cloud brightening’ that causes clouds to reflect more sunlight. 

The study is published in the <a href="https://onlinelibrary.wiley.com/journal/21698996">Journal of Geophysical Research: Atmospheres</a>.

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer 

Paid for by <a href="http://earth.com">Earth.com</a>

Could cloud thinning actually help mitigate global warming?

Of the many methods developed to slow down global warming, some...

0602400484

Scientists at <a href="https://www.wfu.edu/">Wake Forest University</a> have found that more than 170,000 acres of primary rainforest in the Peruvian Amazon has been destroyed by small-scale gold mining. This is over 30 percent more deforestation than was previously realized.


Luis Fernandez is the Executive Director of the Center for Amazonian Scientific Innovation (CINCIA) at Wake Forest. 

“The scale of the deforestation is really shocking,” said Fernandez. “In 2013, the first comprehensive look at Peruvian rainforest lost from mining showed 30,000 hectares. Five years later, we have found nearly 100,000 hectares of deforested landscape.”

The scientists at CINCIA have developed a new data fusion method to identify areas destroyed by small-scale mining. Combining existing forest monitoring technology and Global Forest Change data sets on forest loss, the new <a href="http://www.earth.com/news/exploitation-deforestation-madagascar/">deforestation</a> detection tool is 20-25 percent more accurate than those used previously.

Miles Silman is the associate director of Science for CINCIA and the director of Wake Forest's Center for Energy, Environment, and Sustainability (CEES), who has researched biodiversity and ecology in the Western Amazon and Andes for more than 25 years.

“Combining the two methods gives us really good information about the specific kind of deforestation we're looking for,” said Silman. 

Artisanal-scale gold mining has been challenging to detect, yet the damage is extensive. Small crews of artisanal miners do not expect to hit it big, but they hope to collect the flakes of gold in rainforest.

“We're not talking about huge gold veins here,” said Fernandez. “But there's enough gold in the landscape to make a great deal of money in a struggling economy. You just have to destroy an immense amount of land to get it."

The process that is used to look for gold is environmentally catastrophic.

“You take out everything above ground - vast amounts of rainforest - and then you take the soil, run it through a sluice and wash away all that is good in it. What you have left is an alien environment,” said Silman. “All the scenery should look like broccoli. It looks like desert.”

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer 

Image Credit: Wake Forest University

Increased gold mining is worsening deforestation in the Amazon

Scientists at Wake Forest University have found that more than...

It’s no secret that bee populations around the world have been in decline in recent years. It’s a worrying trend, as bees are likely our most important pollinator, and have a significant positive impact on agricultural crop production, as well as the continued survival of most flowering plants on our planet. 

One of the suspected culprits behind this decline is <a href="http://www.earth.com/news/save-native-bees/">neonicotinoid</a> compounds, which are the most widely used type of insecticide. These compounds have been shown to devastate bee populations through reducing colony sizes. This effect has been widely studied, but the mechanism by which neonicotinoid exposure disrupts the behavioral systems of bee colonies remained unknown… until now.

A new study by James Crall and colleagues used an innovative, automated robotic platform to monitor worker behavior within the hives of multiple bumble bee colonies. The researchers exposed the colonies to environmentally realistic amounts of imidacloprid, which is a common type of neonicotinoid. They then used the tiny robotic platform to spy on the bees.

The study was published by the <a href="https://www.aaas.org/">American Association for the Advancement of Science.</a>

Through these observations, the researchers found that exposure to the neurotoxic pesticide caused measurable changes in worker bee behavior. These workers were less active within the nest, less likely to feed and care for larvae, and more likely to be found near the periphery of the colony.

It was also observed that the behavioral effects varied significantly depending on the time of day. The study’s authors found that worker inactivity and reduced nursing behavior was more apparent at night. They also determined through analysis of free-foraging colonies in the field that imidacloprid exposure impaired colony thermoregulation.

With this new research, scientists may now know the reasons behind reduced colony sizes for bumble bees exposed to these insecticides. Hopefully, it will help lead to further research on how the effects can be reduced, as well as how bee populations might be able to bounce back.

--

By <a href="mailto:certz@earth.com">Connor Ertz</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

How harmful pesticides affect the inner workings of bee colonies

It’s no secret that bee populations around the world have...

Sandpipers are just one group of shorebirds facing steep population declines due to many factors, but <a href="https://www.earth.com/news/arctics-mammal-global-warming/">climate change</a> seems to be the biggest driver of species loss, according to a new study. 

Researchers from the <a href="https://www.bath.ac.uk/research-centres/milner-centre-for-evolution/">Milner Centre for Evolution at the University of Bath</a> found that climate change is causing a chain reaction in the Arctic, historically an area where shorebirds like plovers and sandpipers migrate to because of the decreased risk of predators. 

In the tropics, shorebirds face a higher risk of nest predation, where predators raid nests and steal eggs. To protect their young, many birds migrate to the Arctic to lay their eggs and raise their young. 

However, after analyzing population data from shorebirds over the past 70 years, the researchers discovered that nest predation in the North Temperate Zone has doubled. 

Not only is nest predation leading to fewer hatchlings every season, but fewer adults are also surviving the Arctic as well because of an increase in hunting and habitat degradation. 

To better understand what's driving these declines and changes in the Arctic, the researchers analyzed data from 38,191 nests in 149 locations worldwide. 

111 species were included in the study, which was published in the journal Science. 

The researchers discovered a link between increases in nest predation and climate change in the Arctic and North Temperate Zone. 

Warmer temperatures are reshaping the food web of the Arctic and species that were once abundant are declining which means predators are more likely to raid nests. 

Distribution changes in the Arctic are also introducing new predators to shorebird nesting sites. 

“These findings are alarming,” said Tamás Székely, an author of the study. “The Earth is a fragile planet with complex ecosystems, thus changes in predator-prey interactions can lead to cascading effects through the food web with detrimental consequences for many organisms thousands of kilometres away.”

The researchers say the increase in nest predation may make it impossible for critically endangered species like the Spoonbill Sandpiper to recover. 

“What is particularly striking about these results is that it is clear that nest losses to predators have risen really quickly in the Arctic over the past 20 years,” said Robert Freckleton, a member of the research team. “The precise mechanisms are probably quite complex, but overall it looks like changes in climate are playing a leading role in driving such changes both in the Arctic and at a global scale as well.”

--

By<a href="mailto:kayvandette@gmail.com"> Kay Vandette</a>, <a href="https://www.earth.com/">Earth.com</a> Staff Writer 

Paid for by <a href="http://earth.com">Earth.com</a>

Image Credit: Pavel Tomkovich

Shorebird populations are declining due to climate change

Sandpipers are just one group of shorebirds facing steep population...

Diarrheal disease is the second-leading cause of death in children under the age of five and roughly 525,000 children die of the disease every year, according to <a href="http://www.who.int/news-room/fact-sheets/detail/diarrhoeal-disease">the World Health Organization. </a>

The inability to access <a href="https://www.earth.com/news/filters-remove-heavy-metals-water/">safe drinking water</a> is one of the biggest drivers of diarrheal disease and it’s most common in developing countries.

Researchers from <a href="https://vt.edu/">Virginia Tech</a> and <a href="https://www.columbia.edu/">Columbia University</a> recently conducted a study examining the role of floods in diarrheal outbreaks in populations that depend on the Chobe River floodplain system in Botswana. 

Even though many communities along the Chobe River floodplain system have water treatment facilities, diarrheal disease still spreads through populations in a somewhat regular pattern. 

This led the researchers to wonder if there was any link between flood waters, increases in precipitation and draining water, also known as surface water dynamics, and diarrheal outbreaks. 

“It was a fundamental question for me,” said Kathleen Alexander, a leader of the research. “These places are doing everything right, but local populations are still impacted by diarrheal disease. Why does the infrastructure fail to protect these communities, and what can we do to improve public health now and under future environmental conditions?”

Climate change is projected to increase precipitation and flooding and so understanding how surface water dynamics impact the spread of diarrheal disease is crucial for creating better treatment systems. 

The study was published in the journal PLOS Medicine. 

The Chobe River floodplain system is no stranger to flooding, but its annual floods can vary drastically from year to year and even season to season. 

For the study, the researchers reviewed decades of data from ten government health facilities in Botswana and analyzed outbreak patterns of diarrheal disease across eight communities along the Chobe River.  

Not surprisingly, the researchers found that cases of the disease were more frequent during periods of rainfall. However, the researchers also noticed a link between diarrheal disease cases and flood recession. 

A one-meter drop in the river height during the dry season correlated with a 16.7 increase in cases in children. 

The researchers found that adults and older children were more likely to get sick during the dry season and young children got sick during the wet season. 

“What this tells us is that environmental conditions drive diarrheal disease -- not just the number of diarrhea cases and timing of outbreaks but also who is affected and what type of diarrhea might occur,” said Alexander. 

The researchers theorize that the reason current treatment facilities are failing to prevent outbreaks is that the variability in flood dynamics and surface water conditions along the Chobe River. 

“These highly variable surface water dynamics are difficult to manage in many water treatment plants, potentially increasing waterborne disease risk in dependent populations,” said Alexander. 

“There is an urgent need to evaluate water infrastructure and ensure these systems are able to handle rapid shifts in surface water quality.” 
--

By <a href="mailto:kayvandette@gmail.com">Kay Vandette</a>, <a href="https://www.earth.com/">Earth.com</a> Staff Writer 

Image Credit: Virginia Tech

Changes in floodplain increase the risk of waterborne disease

Diarrheal disease is the second-leading cause of death in children...

Rapid warming across two connected marine ecosystems, the Eastern English Channel and Southern North Sea, has caused small fish to abruptly move northward and jump from one region to the other. These major shifts in the structure and function of an ecosystem can alter the rate of <a href="http://www.earth.com/news/fans-suck-carbon-dioxide/">carbon</a> uptake, as well as the rate at which organic materials are broken down.


According to the study authors, the findings suggest that the expected increase in the frequency and severity of climate oscillations and extreme warming events could trigger shifts in the distribution and abundance of species. 

“This warming caused an abrupt change in fish communities as small, rapidly maturing fishes, particularly pelagic fishes, simultaneously decreased in the English Channel and increased in the North Sea,” said study co-author Matthew McLean. “This suggests both that fishes shifted northward between the ecosystems and that the English Channel became an unfavorable environment for certain fishes while the North Sea became a more favorable environment.”

In the mid-1990s, the “Atlantic Multidecadal Oscillation” produced warmer sea surfaces throughout the Atlantic Ocean. The researchers realized that the majority of the research on the impact of this warming was focused on changes in particular species. 

In the new study, the researchers took a different approach to factor in the characteristics of certain species. 

“Surprisingly few studies have used this approach to understand how rapid warming can affect marine ecosystems and how shifts in fish abundances and distributions can impact ecosystem functioning,” said McLean. 

Analyzing over three decades of fish monitoring data and an extensive compilation of ecological traits, the experts characterized the functional structure using ten traits related to life history, habitat use, and feeding ecology for 73 fish species in the English Channel and 110 fish species in the North Sea.

The researchers were not surprised to find changes in the abundance and distribution across species in response to human-induced global warming. However, they were surprised to find an inverse shift in entire fish communities within connected ecosystems. 

The team was also surprised to find that the response to warmer conditions occurred only one or two years after a major temperature rise. The findings suggest that the influence of fishing was minor in comparison to the effects of warming.

The study is published in the journal <a href="https://www.cell.com/current-biology/home">Current Biology</a>. 

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer 

Paid for by <a href="http://earth.com">Earth.com</a>

Warming waters are prompting major changes in marine ecosystems

Rapid warming across two connected marine ecosystems, the Eastern English...

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

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



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



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



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



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



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



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



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



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



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



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



-----



Like what you read? <a href="https://www.earth.com/subscribe/" target="_blank" rel="noreferrer noopener">Subscribe to our newsletter</a> for engaging articles, exclusive content, and the latest updates.



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



-----

Wildlife tunnels save millions of amphibians

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

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



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



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



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



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



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



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



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



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



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



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

Is chocolate the next nutritional powerhouse?

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

<div class="wp-block-sendtonews-playerselector">[sendtonews key="QGPzYnXEtN-1712599-12187" type="single"]</div>



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



---



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



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

Designing crops that can beat the heat

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

<div class="wp-block-sendtonews-playerselector">[sendtonews key="EjmSP20gQK-2593093-12187" type="single"]</div>



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;



---



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...

<div class="wp-block-sendtonews-playerselector">[sendtonews key="uV9Lh2fQbV-1760058-12187" type="single"]</div>



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;



---



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"

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

<div class="wp-block-sendtonews-playerselector">[sendtonews key="f8fukm28Vz-2491833-12187" type="single"]</div>



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



---



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...

<div class="wp-block-sendtonews-playerselector">[sendtonews key="0879czfG3k-1785905-12187" type="single"]</div>



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



---



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



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

The rapid retreat of the Columbia Glacier

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

<div class="wp-block-sendtonews-playerselector">[sendtonews key="3UUsNkFOuS-2487333-12187" type="single"]</div>



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



---



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



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

2022 illustrated the consequences of a warming climate

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

<div class="wp-block-sendtonews-playerselector">[sendtonews key="JbW4VsY53O-1632195-12187" type="single"]</div>



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;



---



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.

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



---



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.

Tiger sharks are shifting poleward as temperatures rise

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

<div class="wp-block-sendtonews-playerselector">[sendtonews key="qARzJPSabQ-2270617-12187" type="single"]</div>



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;



---



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.

Melt ponds on the Greenland Ice Sheet

[sendtonews key="qARzJPSabQ-2270617-12187" type="single"] Today’s Video of the Day from the...

<div class="wp-block-sendtonews-playerselector">[sendtonews key="fxH3eJHEkQ-2010196-12187" type="single"]</div>



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



---



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

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

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

<div class="wp-block-sendtonews-playerselector">[sendtonews key="Ccjk8KEMzv-2550719-12187" type="single"]</div>



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;



---



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

[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

<div class="wp-block-sendtonews-playerselector">[sendtonews key="6SdlLLbt0t-1988946-12187" type="single"]</div>



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



---



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...

<div class="wp-block-sendtonews-playerselector">[sendtonews key="gRpsplpwpe-2251464-12187" type="single"]</div>



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;



---



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

[sendtonews key="gRpsplpwpe-2251464-12187" type="single"] Today’s Video of the Day from the...

<div class="wp-block-sendtonews-playerselector">[sendtonews key="eAVLRk51oJ-1826888-12187" type="single"]</div>



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



---



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

[sendtonews key="eAVLRk51oJ-1826888-12187" type="single"] Today’s Video of the Day from the...

<div class="wp-block-sendtonews-playerselector">[sendtonews key="sFFhiK9OOn-1720418-12187" type="single"]</div>



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;



---



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

[sendtonews key="sFFhiK9OOn-1720418-12187" type="single"] Today's Video of the Day from the...

<div class="wp-block-sendtonews-playerselector">[sendtonews key="yPSXGZek1I-2312529-12187" type="single"]</div>



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



---



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

[sendtonews key="yPSXGZek1I-2312529-12187" type="single"] Today’s Video of the Day from the...

<div class="wp-block-sendtonews-playerselector">[sendtonews key="EPdZexVR30-1731237-12187" type="single"]</div>



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



---



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

[sendtonews key="EPdZexVR30-1731237-12187" type="single"] Today’s Video of the Day from the...

<div class="wp-block-sendtonews-playerselector">[sendtonews key="uwirCufwYv-2012371-12187" type="single"]</div>



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



---



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

[sendtonews key="uwirCufwYv-2012371-12187" type="single"] Today’s Video of the Day from the...

News coming your way