For over 100 years, the North Atlantic has hosted an anomaly. South of Greenland lies a patch of cool ocean water. This region, called the North Atlantic Warming Hole (NAWH), defies global warming. 



Scientists long debated its cause. A new study now shows that the weakening of a vital <a href="https://www.earth.com/news/atlantic-ocean-current-system-will-weaken-but-is-unlikely-to-collapse/">ocean</a> current - the Atlantic Meridional Overturning Circulation (AMOC) - explains it best.



“People have been asking why this cold spot exists,” said climate scientist Wei Liu. “We found the most likely answer is a weakening AMOC.”



<h2 class="wp-block-heading" id="h-source-of-the-atlantic-cold-spot">Source of the Atlantic cold spot</h2>



The AMOC moves warm, salty water northward and cooler water southward. This system shapes climate across continents. When it slows, less heat and salt reach the north. The result? Cooler, fresher waters south of Greenland.



Liu and Kai-Yuan Li from <a href="https://www.ucr.edu" target="_blank" rel="noreferrer noopener">University of California Riverside</a> studied temperature and salinity data spanning a century. 



Direct AMOC measurements only cover 20 years. But using six long-term sea surface temperature (SST) datasets and three salinity datasets, the researchers built a much clearer picture. They also tested 94 global <a href="https://www.earth.com/news/collapse-of-main-atlantic-ocean-circulaton-current-amoc-is-already-happening/">climate</a> models.



Only models simulating a slowing AMOC recreated the observed North Atlantic cooling. These models showed trends of up to −0.3 °C per century (about −0.54 °F per century), matching the real-world pattern known as the NAWH.



<h2 class="wp-block-heading" id="h-clear-signs-of-amoc-weakening">Clear signs of AMOC weakening</h2>



The team defined <a href="https://www.earth.com/news/weakening-ocean-currents-provide-a-rainfall-boost-in-the-amazon/">AMOC</a> fingerprints using a dipole pattern: cooling in the subpolar gyre (south of Greenland) and warming near the Gulf Stream. This contrast, visible in SST and salinity (SSS), offers a reliable way to track AMOC strength.



From the observations, they estimated that the AMOC weakened by −1.01 to −2.97 Sverdrups per century from 1900 to 2005. 



A single Sverdrup equals one million cubic meters of water per second. That’s a massive loss of energy transport across the Atlantic.



<h2 class="wp-block-heading" id="h-atlantic-cold-spot-reaches-the-deep-ocean">Atlantic cold spot reaches the deep ocean</h2>



The cooling and freshening do not stop at the surface. The study reveals that subsurface waters down to 3,000 meters also exhibit clear signs of this trend. 



The vertical profile shows cooling and freshening at depth, confirming that AMOC’s slowdown affects the entire ocean column.



Model comparisons between weakened and strengthened AMOC simulations highlighted another key point. 



A slower <a href="https://www.earth.com/news/polar-warming-could-reduce-ocean-currents-amoc-and-cause-massive-flooding-in-the-us/">AMOC</a> causes a heat transport gap - less warm water moves northward. This creates a cold zone between 40°N and 65°N, which matches the NAWH location.



<h2 class="wp-block-heading" id="h-long-term-amoc-slowdown-confirmed">Long-term AMOC slowdown confirmed</h2>



Salt transport in the North Atlantic also changes. A weakened AMOC means more freshwater sits at the surface. This freshening was strongest across the NAWH and extended to the Labrador Sea. 



While observations showed some salinity increase in the Labrador Sea, models still closely captured the broad trend.



Both the SST- and SSS-based fingerprint indices (FPISST and FPISSS) showed strong correlation with AMOC weakening. These patterns help researchers verify the slowdown, even without direct current measurements.



<h2 class="wp-block-heading" id="h-other-theories-on-north-atlantic-cold-spot">Other theories on North Atlantic cold spot</h2>



Some past theories suggested the NAWH came from changes in wind patterns or reduced air pollution. These theories were tested in the new study. 



In experiments with slab-ocean models (which isolate atmospheric effects), the cooling did not appear. Only in fully coupled models - with real ocean circulation - did the NAWH form.



“We tested CO₂ experiments in slab-ocean and fully coupled models,” the authors wrote. “Only the fully coupled models with a weakening AMOC showed the cooling feature.”



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



The South Greenland anomaly in the North Atlantic affects more than just <a href="https://www.earth.com/news/have-global-temperatures-breached-the-1-5c-threshold/">temperature</a>. It reshapes the jet stream and alters weather across Europe and North America.



The cold zone also threatens marine ecosystems. Many fish species rely on certain salinity and temperature levels. Disruptions could shift where they live, breed, and migrate.



“Our results show that only the models with a weakening AMOC get it right. That means many of the recent models are too sensitive to aerosol changes, and less accurate for this region,” noted Liu.



<h2 class="wp-block-heading" id="h-looking-ahead-with-better-tools">Looking ahead with better tools</h2>



This study helps improve <a href="https://www.earth.com/news/looking-to-earths-ancient-climate-to-predict-our-future/">climate forecasts</a> by identifying the most realistic models. It also highlights the value of indirect evidence. Fingerprints built from ocean temperature and salinity can track changes even when direct measurements are sparse.



“We don’t have direct observations going back a century, but the temperature and salinity data let us see the past clearly,” Li noted.



If greenhouse gas emissions keep rising, the AMOC may continue to weaken. That means more pronounced cooling near Greenland and stronger climate impacts across Europe.



By understanding this cold patch, scientists gain a clearer view of Earth's <a href="https://www.earth.com/news/climate-experts-predict-global-warming-will-far-exceed-paris-goals/">climate system</a>. The North Atlantic Warming Hole is not a mystery anymore. It’s a sign - quiet, persistent, and measurable - of a changing ocean current that affects us all.



The study is published in the journal <a href="https://www.nature.com/articles/s43247-025-02403-0" target="_blank" rel="noreferrer noopener">Communications Earth &amp; Environment</a>.



Image description: The ocean anomaly map reveals the Atlantic sea surface temperature trend between 1900-2005 (color shading in °C) for the average of six observation datasets. 



Image Credit: Kai-Yuan Li/UCR



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Cold spot in the Atlantic could signal big trouble for global climate

For over 100 years, the North Atlantic has hosted an anomaly. South of Greenland lies a patch of cool ocean water. This region, called the North Atlantic Warming Hole (NAWH), defies global warming. Scientists long debated its cause. A new study now shows that the weakening of a vital ocean current - the Atlantic Meridional Overturning Circulation (AMOC) - explains it best. “People have been asking why this cold spot exists,” said climate scientist Wei Liu. “We found the most likely answer is a weakening AMOC.” Source...

Carbon Dioxide

Canada Plans To Reduce Greenhouse Gas Emissions By 30 Percent. Canada announced Friday it plans to reduce its greenhouse gas emissions by 30 percent below 2005 levels by 2030 amid international efforts to create a new framework for addressing climate change.
Prime Minister Stephen Harper's Conservative government said it formally submitted its target to the United Nations Framework Convention on Climate Change ahead of the major climate change conference in Paris in December.
The U.S. has committed to a 26 percent to 28 percent cut by 2025 from 2005 levels. The EU has a target of 35 percent below 2005 levels by 2030. Japan is proposing to cut its greenhouse gas emissions by up to 26 percent by 2030. China, the world's largest emitter, has not officially filed its target yet, but China did set a target for the country's emissions to peak by 2030 in a joint climate announcement with the U.S. last November.
A new international framework replacing the 1997 Kyoto Protocol is to be discussed at the Paris conference. The anti-global warming treaty has been largely ineffective because only rich countries were required to limit their emissions. Poorer countries have been reluctant to make commitments in a new framework.
Harper pulled Canada out of the Kyoto <a href="http://www.earth.com/news/kyoto-protocol-report-card-100-percent-compliance/">Protocol</a> in 2011, saying the accord would not help solve the climate crisis. That dealt a blow to the treaty, which had not been formally renounced by any other country. The U.S. never signed up.
Canadian Environment Minister Leona Aglukkaq said the new target is fair and ambitious and reflects the country's economic circumstances. Aglukkaq said they would introduce new regulations on methane emissions produced by the oil and gas industry as well as for natural gas-fired power generation and for the chemical and nitrogen fertilizer industries. There was no mention of new regulations for Alberta's oil sands industry, Canada's fastest growing source of emissions.
Canada might also buy international credits to meet its targets. Canada could get deductions from its counted emissions by investing in environmentally friendly projects in other countries.
Elliot Diringer, executive vice president of the U.S.-based Center for Climate and Energy Solutions, said when measured against current emissions, Canada's target is roughly comparable to the U.S. and the EU targets.
"Given that Canada pulled out of the Kyoto Protocol and that it is not on track to meet its 2020 target, Canada will have to work very hard to persuade the international community that it can deliver on its 2030 target," Diriniger said. "It would require significant effort beyond business as usual to deliver that reduction."
Environmentalists have long criticized <a href="http://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada</a> as being an outlier on efforts to curb climate change. Harper has called Canada an emerging energy superpower and has avoided doing anything to get in the way of that.
Canada has the world's third-largest oil reserves, with more than 170 billion barrels. Daily production is expected to more than double by 2025. Only Saudi Arabia and Venezuela have more reserves. But critics say the enormous amount of energy and water needed in the extraction process increases greenhouse gas emissions. Canada Plans To Reduce Greenhouse Gas Emissions By 30 Percent
Under the 2009 Copenhagen Accord, Canada vowed to cut emissions 17 percent below 2005 levels by 2020, but Environment Canada reported last month that the country's greenhouse gas emissions rose between 2012 and 2013 to 726 megatons. It was the fourth consecutive annual increase.
"What hopefully Paris produces is institutionalized peer pressure to hold countries accountable for their promises," Diriniger said.
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Canada Plans To Reduce Greenhouse Gas Emissions By 30 Percent

Canada Plans To Reduce Greenhouse Gas Emissions By 30 Percent....

Arctic Drill Ships

Kayaktivists Hold 'Shell No' Protest In Seattle. Kayaktivists Hold 'Shell No' Protest In Seattle. Activists opposed to drilling for oil in the Arctic plan to launch a flotilla of kayaks and other boats on Seattle's Elliott Bay on Saturday, two days after the arrival of a towering <a href="https://www.bing.com/search?q=oil&amp;cvid=9c5744b4cba241019858b74aee1d9bf4&amp;FORM=ANAB01&amp;PC=HCTS">oil</a> rig that is the centerpiece of Shell's Arctic drilling fleet.
The "Paddle in Seattle" - a daylong, family friendly festival in a West <a href="http://www.earth.com/news/wildfire-smoke-seattle-air-dangerous/">Seattle</a> park and an on-the-water protest by "Shell No" kayaktivists - aims to continue the message sent as the Polar Pioneer drilling rig arrived: "Stand up for the climate and say no to Shell's drilling plans." Kayaktivists Hold 'Shell No' Protest In Seattle
"This weekend is another opportunity for the people to demand that their voices be heard," Alli Harvey, Alaska representative for the Sierra Club's Our Wild <a href="http://www.earth.com/earthpedia-articles/perennial-vegetables-to-grow-in-north-america/">America</a> campaign, said in a statement Friday. "Science is as clear as day when it comes to drilling in the Arctic: the only safe place for these dirty fuels is in the ground."
The gathering, hosted by a coalition of groups, is expected to draw thousands both on land and in the water. At the center of the paddle protest will be the "People's Platform," a 4,000-square-foot barge powered by renewable energy, said Jonathon Berman with the Sierra Club.


[caption id="attachment_2381694" align="alignleft" width="150"]<a href="http://cff1.greenatom.net/uploads/2015/05/kayaktivists_3big_ap.jpg"><img class="size-thumbnail wp-image-2381694" src="http://cff1.greenatom.net/uploads/2015/05/kayaktivists_3big_ap-150x150.jpg" alt="Credit: AP" width="150" height="150" /></a> Credit: AP[/caption]
Just a quarter-mile away from the Seacrest Marine Park sits the 400-foot long, 300-foot tall Polar Pioneer, the first of two oil drilling rigs that Royal Dutch Shell plans to use this summer as it explores for oil off Alaska's northern coast. The second rig, the Noble Discoverer, arrived at the Port of Everett last week and is slated join the Polar Pioneer at the Port of Seattle's Terminal 5 at a later date. Everett port spokeswoman Lisa Lefeber said on Friday that they expect the Noble Discoverer to be there for two to three weeks.
The Arctic holds about 30 percent of the world's undiscovered natural gas and 13 percent of its oil, according to Shell's website.
"This amounts to around 400 billion barrels of oil equivalent, 10 times the total oil and gas produced in the North Sea to date," Shell's site says. "Developing Arctic resources could be essential to securing energy supplies for the future, but it will mean balancing economic, environmental and social challenges." Kayaktivists Hold 'Shell No' Protest In Seattle
The activists see it differently, however.
The protesters say it's critical that they take a stand "against dirty fossil fuel projects" and want to put themselves on the front lines in the battle for Arctic oil.
---
Follow Martha Bellisle at <a href="https://twitter.com/marthabellisle" target="_blank" rel="noopener">https://twitter.com/marthabellisle</a>
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Kayaktivists Hold 'Shell No' Protest In Seattle

Kayaktivists Hold 'Shell No' Protest In Seattle. Kayaktivists Hold 'Shell...

What do you do when you have 30 million young salmon ready for their big journeys downstream, but drought and development have dried your riverbeds to sauna rocks? In California this year, you give the fish a ride.
State and federal wildlife agencies in California are deploying what they say is the biggest fish-lift in the state's history through this month, rolling out convoys of tanker trucks to transport a generation of hatchery salmon downstream to the San Francisco Bay. California is locked in its driest four-year stretch on record, making the river routes that the salmon normally take to the Pacific Ocean too warm and too shallow for them to survive.
"It's huge. This is a massive effort statewide on multiple systems," said Stafford Lehr, chief of fisheries for the California Department of Fish and Wildlife, which since February has been rolling out four to eight 35,000-gallon tanker trucks filled with baby salmon on their freeway-drive to freedom.
"We're going to unprecedented drought," Lehr said. "We're forced to extreme measures."
Drought and heavy use of water by farms and cities have devastated key native fish in California. Last year, for example, 95 percent of the state's winter-run of Chinook salmon died. The fish is vital for California's fishing industries and for the food chain of wildlife.
For the first time, all five big government hatcheries in California's Central Valley for fall-run Chinook California salmon - a species of concern under the federal Endangered Species Act - are going to truck their young, release-ready salmon down to the Bay, rather than release them into rivers to make the trip themselves.
And California's wild native fish should pack a sandwich and something to read; they'll be spending a lot of the summer on the road too.
"Bone dry. Bone dry," said fish biologist Don Portz of the U.S. Bureau of Reclamation, who is six years into an effort to restore the southernmost salmon stream in the U.S., the Central Valley's San Joaquin River.
Drought, a dam and heavy use of the river's water for irrigation have dried 60 miles of the San Joaquin. For the young salmon, whose life cycle for millions of years has involved travel from the river back and forth to the San Francisco Bay, that now means a 1 1/2-hour ride down California Highway 99 in a pickup-mounted fish tank.
"You give them that taxi ride down, they make it to the ocean, and come back" in a few years for trapping and a taxi ride back up to spawning grounds, Portz said.
The rolling fish rescues occurring up and down the West Coast haven't always gone smoothly. In January, Oregon authorities charged a trucker with drunken driving after he hit a pole and flipped 11,000 juvenile salmon out on the roadway, where they died.
For some of California's native fish, the rescue from drought often is by bucket, not truck.
Near the town of Lagunitas, in Northern California's Marin County, watershed biologist Preston Brown stood ankle-high in a coastal tributary, searching for endangered California coastal Coho salmon and other, native fish. Decades ago, so many coho salmon filled the water that the noise of their jumping kept people in nearby houses up at night. On this day, Brown and his team find none.
Starting in June, months earlier than usual because of the drought, Brown and others with local environment group Salmon Protection and Watershed Network, will search the waterway. In cooperation with wildlife agencies, they will try to rescue coho and other fish stuck in drying pools of water 4- or 5 inches deep.
Sometimes, Brown said, the bucket brigades get there too late for the stranded salmon. "If they survived the raccoons" and other predators, "they dried up and died," Brown said.
Lehr, the fisheries chief, expects some individual steelhead trout in Southern California will get truck rides two or three times this summer, as parts of rivers and creeks disappear.
As a last resort, when some rivers have no pools of water left to shelter fish, wildlife officials will remove survivors to a hatchery to wait out the drought. Two such isolated native species from dried-up waterways have been living in government hatcheries since last year, snacking on flies that rangers catch in bug-zappers for them, Lehr said, and waiting for wetter times.
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California Salmon Have To Hitch A Ride Thanks To Drought

What do you do when you have 30 million young...

<div class="inside"></div>
Al Gore Confident In Global Climate Pact Evironmentalist and former U.S. Vice President Al Gore is optimistic that world leaders will reach a crucial deal this year on fighting climate change.
Gore met Monday with French President Francois Hollande, who will be hosting a major U.N. <a href="https://www.bing.com/search?q=climate&amp;cvid=e6d446f5affb44a7a4a73a407f79e12f&amp;FORM=ANAB01&amp;PC=HCTS">climate</a> conference in Paris on Nov. 30-Dec. 11.
After the meeting, Gore said, "this conference is the one where the world will say yes to an agreement to reduce global warming and pollution." Al Gore Confident In Global Climate Pact
Gore negotiated for the U.S. at the 1997 conference that produced the Kyoto <a href="http://www.earth.com/news/kyoto-protocol-report-card-100-percent-compliance/">Protocol</a> to reduce global warming. That treaty has been largely ineffective because it only required rich countries to limit greenhouse gas emissions.
The Paris conference is aiming at a new, larger framework, but many differences remain about which countries should do what.
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Al Gore Confident In Global Climate Pact

Al Gore Confident In Global Climate Pact Evironmentalist and former...

Study Examines Ecological Impact Of Sea-Ice Changes.The grounding of a giant iceberg in Antarctica has provided a unique real-life experiment that has revealed the vulnerability of marine ecosystems to sudden changes in sea-ice cover.

UNSW Australia scientists have found that within just three years of the iceberg becoming stuck in Commonwealth Bay - an event which dramatically increased sea-ice cover in the bay - almost all of the seaweed on the sea floor had decomposed, or become discoloured or bleached due to lack of light.

"Understanding the ecological effect of changes in sea-ice is vital for understanding the future impacts of climate change, but it is impossible to manipulate sea-ice at the scale we need to conduct experiments," says the study's lead author, UNSW's Dr Graeme Clark.

"Luckily, the grounding of an iceberg in Commonwealth Bay in 2010 provided us with a perfect natural experiment to carry out research on this important issue.

"Historically, the winds coming down from the Antarctic ice cap have kept the bay free of sea-ice for most of the year. But since the massive iceberg got stuck, the bay has been covered in sea-ice several metres thick, all year round," he says.

The study is published in the journal Polar Biology.

The scientists travelled to Commonwealth Bay in the east of the continent in December 2013, as part of the UNSW-led Australasian Antarctic Expedition 2013-2014, which retraced the route of Sir Douglas Mawson's scientific expedition a century before.

Dr Clark and team member, Dr Ezequiel Marzinelli, drilled through the sea ice in the bay and used underwater cameras to survey the seabed.

The UNSW team, led by Professor Emma Johnston, also examined the historical records made by Sir Douglas Mawson, who established his research station in Commonwealth Bay. Mawson's expedition used dredge hauls to survey the bay, which was then rarely covered in ice, in five locations during a two-year period from 1912 to 1913.

The UNSW researchers also compared their survey results with footage taken in the area in 2008 by underwater photographer Erwan Amice.

"After three years of sea-ice cover, the forests of healthy seaweeds that previously dominated the seabed were in a severe state of decline," says Professor Johnston, of the UNSW School of Biological, Earth and Environmental Sciences. Study Examines Ecological Impact Of Sea-Ice Changes

"About three quarters were decomposing, while the remainder were discoloured or bleached. However, darkness-adapted vertebrates such as brittle stars and fan worms were starting to colonise the bay."

Dr Marzinelli says: "This is the first time a shift from an algae-dominated ecosystem to an invertebrate-dominated one has been observed with a known start date. Continued sampling at the site would allow the rate at which this transition is occurring to be worked out."

Sea-ice not only affects how much light reaches the animals and plants living on the seabed, it regulates the amount of disturbance from drifting icebergs that scour the bottom, and determines the amount of detritus and vegetation that settles there.

---

<a href="http://www.unsw.edu.au/" target="_blank" rel="noopener">University of New South Wales</a>

Study Examines Ecological Impact Of Sea-Ice Changes

Study Examines Ecological Impact Of Sea-Ice Changes.The grounding of a...

Arctic OffShore Drilling

Arctic Drilling Protesters Block Oil Rig Entry Into Seattle Port. A few hundred critics of oil drilling in the Arctic Ocean blocked the entrances Monday to a seaport terminal in Seattle, where Royal Dutch Shell's massive floating oil rig will be loaded up before heading to the waters off Alaska this summer.
Protesters holding banners and flags marched across a bridge to Terminal 5, temporarily closing the road during Monday morning's commute. Once at the terminal, they spread out across the entrances.
Organizers say they plan to engage in civil disobedience to stop work on the drill rig, the latest protest of the 400-foot Polar Pioneer's arrival in Seattle. Protesters greeted the rig Thursday and then hundreds of activists in kayaks and other vessels turned out Saturday for a protest dubbed the "Paddle in Seattle."
Shell, which hopes to use the rig to explore for oil off Alaska's northwest coast, said it was planning to release a statement Monday.
Police say arrests are possible, but they expect the demonstration to be peaceful. A few dozen officers followed the march on foot and bicycle and kept watch at the terminal.
There were minimal operations at Terminal 5 "so there's not much to block," Port of Seattle spokesman Peter McGraw said. The operator of Terminal 18, a major hub of port activity where the march began, closed those gates in anticipation of the demonstration, he said.
Officials have been urging people to exercise their First Amendment rights safely, and "that's what we've been seeing so far," McGraw said.
The activists say they are concerned about the risk of an oil spill in the remote Arctic waters and the effects that tapping new frontiers of oil and gas reserves will have on global warming. Officials in Alaska have touted the economic benefits that drilling could bring there and to the Pacific Northwest.
On Monday, protesters of all ages sang, rapped and danced at the vehicle gate of Terminal 5. They chanted and held signs saying "Climate Justice For All" and "You Shell Not Pass."
Lisa Marcus, 58, a musician who participated in Saturday's protest, turned up with her "Love the planet" sign for another day of activism Monday.
"We've got to wake up" to the dangers of human-caused climate change, she said, ticking off a list of environmental problems that the world is facing. "Shell is trying to make it worse and that's not acceptable."
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Arctic Drilling Protesters Block Oil Rig Entry Into Seattle Port

Arctic Drilling Protesters Block Oil Rig Entry Into Seattle Port....

Global Warming And Population Shift Combining As The Perfect Heat Storm. The combination of global warming and shifting population means that by mid-century, there will be a huge increase in the number of Americans sweating through days that are extremely hot, a new study says.
People are migrating into areas - especially in the South - where the heat is likely to increase more, said the authors of a study published Monday by the journal Nature Climate Change. The study highlighted the Houston-Dallas-San Antonio and Atlanta-Charlotte-Raleigh corridors as the places where the double whammy looks to be the biggest. Global Warming And Population Shift Combining As The Perfect Heat Storm
"It's not just the climate that is changing in the future," said study co-author Linda Mearns, a senior scientist at the National Center for Atmospheric Research in Boulder, Colorado. "It is many things: how many people and where people are that affects their exposure to climate changes."
In a unique study looking at the interplay of projected changes in climate and population, scientists tried to characterize the number of people who will feel temperatures of 95 degrees or higher and how often they will feel it. They used a figure called person days for the extreme heat to reflect both the length of time heat waves continued and how many people felt it by multiplying people affected by how many days they felt the heat.
Between 1970 and 2000, the U.S. averaged about 2.3 billion person days of extreme heat each year. But between 2040 and 2070 that number will be between 10 and 14 billion person days a year, according to the study.
The biggest projected increases in person days is the Texas, Oklahoma, Louisiana, Arkansas census region where by mid-century heat exposure will increase by 2.7 billion person days. Right behind is south Atlantic region of Florida, Georgia, South Carolina, North Carolina, Virginia, West Virginia, Maryland, Delaware and Washington, D.C., where heat exposure is projected to increase by 2.2 billion person days. New England gets off the easiest with an increase of only 71 million person days.
The scientists used 11 different climate models based on current trends of heat-trapping carbon dioxide emissions and matched those with demographic trends. Both the increased heat and population shifts had about equal effects but together they made matters even worse, said lead author Bryan Jones, a population geographer at the City University of New York. Global Warming And Population Shift Combining As The Perfect Heat Storm
The question is, will be people adapt by changing their lifestyle, such as staying indoors and using more air conditioning, or will they move to cooler climates. Jones said it is unlikely that people will move to cooler areas to escape the heat, saying historically people tend to move away from colder areas and into warmer areas like Florida, Arizona and North Carolina.
The scientists chose a threshold of 95 degrees because "at 95 people really, really start feeling it," Mearns said. "Even in a dry climate and I'm sitting here in Boulder, Colorado."
Several outside scientists praised the study. University of Georgia meteorology professor Marshall Shepherd said the problem is likely even worse when you take into consideration the fact that cities get hotter than rural areas.
--
Online:
Nature Climate Change: <a href="http://www.nature.com/nclimate" target="_blank" rel="noopener">http://www.nature.com/nclimate</a>
---
Seth Borenstein can be followed at <a href="http://twitter.com/borenbears" target="_blank" rel="noopener">http://twitter.com/borenbears</a>
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Global Warming And Population Shift Combining As The Perfect Heat Storm

Global Warming And Population Shift Combining As The Perfect Heat...

Pouring Water Into Glass On Blue Background

California Expands Efforts To Protect Drinking Water. California regulators on Monday expanded their list of thousands of state-permitted oil and gas wells where below-ground injections may be contaminating drinking-water reserves.
State water officials already have acknowledged that improperly permitted oilfield operations have contaminated underground aquifers that are federally protected because they hold current or potential sources of drinking water.
An ongoing state review ordered by the U.S. Environmental Protection Agency has yet to break that down into whether any Californian is drinking contaminated water as a result of the improperly authorized oilfield operations, a state water official said.
"We don't really know yet," and the answer "is not going to be tomorrow," John Borkovich, chief of the state water board's groundwater monitoring section, told reporters. "There's a lot of data to collect."
The review by state oil and gas regulators identified in 2014 more than 2,500 oilfield wells that were injecting brine and other production and waste fluids into the federally protected water aquifers. State regulators this year and last ordered oil companies to shut 23 central California oilfield injection wells - 22 in Kern County and one in Tulare County - that officials said posed the biggest potential threat to nearby public water wells.
On Monday, regulators released a state letter sent Friday to the U.S. EPA identifying an additional 30 oilfield injection sites as high-priority potential risks to nearby water wells. State officials told reporters they believed many or all of the threatened water wells were not currently being used for drinking water or irrigation, however.
Unlike in the previous 23 oilfield operations closed by emergency state orders, regulators will wait for the oil companies in charge of those 30 drilling sites to completely assess the threat to local water wells before officials decide whether to shut those immediately as well.
For the first time, state regulators also disclosed that regulators have allowed 3,604 oil-industry wells to carry out cyclic-steam injection - a production method that repeatedly injects steam underground at high pressure -outside the approved boundaries of oilfields.
Environmental groups and some state lawmakers contend those cyclic-steam injection wells are illegal. In an email, Steven Bohlen, state oil and gas supervisor, said it was doubtful those 3,604 wells would raise any additional concerns about groundwater because they were injecting into underground areas that already contained hydrocarbon.
Bohlen added that "a higher level of scrutiny on such wells may be called for in the future."
Federal officials have approved a state timeline that would stop all oilfield injection into federally protected water aquifers in <a href="http://www.earth.com/image/tule-fog-across-californias-central-valley/">California</a> by February 2017.
"We are making good progress in addressing concerns about water quality that we all share," said Bohlen. California Expands Efforts To Protect Drinking Water
Some environmental organizations want the state to stop all oilfield injection into federally protected water aquifers immediately.
"I think it's remarkable that the extent of this crisis just keeps growing and yet state officials are doing essentially nothing to address it," said Kassie Siegel, senior counsel at the Arizona-based Center for Biological Diversity. "The commonsense first step is to stop the ongoing damage."
California is the country's third-biggest petroleum-producing state. Injection wells are involved in up to 85 percent of the state's production, the oil industry says.
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California Expands Efforts To Protect Drinking Water

California Expands Efforts To Protect Drinking Water. California regulators on...

New Texas Law Bans Cities From Banning Fracking. Republican Texas Gov. Greg Abbott has signed into law a prohibition on cities and towns imposing local ordinances preventing fracking and other potentially environmentally harmful oil and natural<a href="http://www.earth.com/news/giant-animals-vanished-from-madagascar-after-humans-arrived/"> gas</a> activities.
The much-watched measure sailed through the GOP-controlled Legislature after voters in Denton, a university town near <a href="https://www.bing.com/search?q=dallas&amp;cvid=1de2205b39ba4fadbb0f19e5cdc97278&amp;FORM=ANAB01&amp;PC=HCTS">Dallas</a>, banned hydraulic fracturing locally in November.
The new law limits not only the Denton ban but other actions communities could take limiting energy industry activities. It was backed by oil and gas concerns. New <a href="https://www.bing.com/search?q=texas&amp;cvid=73d7c3aa22734886947fb3e2a71a9626&amp;FORM=ANAB01&amp;PC=HCTS">Texas</a> Law Bans Cities From Banning Fracking
Abbott said Monday he was protecting private property rights from the "heavy hand of local regulation."
He saw no contradiction in new state regulations superseding local voters' will, saying he believes "individuals have a much better idea how to run their own lives than do a bunch of government officials." Without an act of Congress, the President could not issue an outright ban on fracking across the US. There are, however, a number of regulatory and executive actions an administration could take to prevent or shrink the use of fracking technology, particularly on federal land.
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New Texas Law Bans Cities From Banning

New Texas Law Bans Cities From Banning Fracking. Republican Texas...

New Texas Law Bans Cities From Banning Fracking. Republican Texas Gov. Greg Abbott has signed into law a prohibition on cities and towns imposing local ordinances preventing <a href="https://www.bing.com/images/search?view=detailV2&amp;ccid=eAPN9YEZ&amp;id=11B9B035B9AC85DFD1FC8AA4363D588103F4C417&amp;thid=OIP.eAPN9YEZ-5O7v1jV1nZ_OAHaFO&amp;mediaurl=https%3a%2f%2fth.bing.com%2fth%2fid%2fR7803cdf58119fb93bbbf58d5d6767f38%3frik%3dF8T0A4FYPTakig%26riu%3dhttp%253a%252f%252fmarketbusinessnews.com%252fwp-content%252fuploads%252f2017%252f04%252fImpact-of-Air-Pollution-on-Human-Health.jpg%26ehk%3dq8n1kIt%252fLPbpAYtoQWGNOnURL4zPyjHXLAPrmSa6n6s%253d%26risl%3d%26pid%3dImgRaw&amp;exph=661&amp;expw=937&amp;q=Fracking+Harms+Air+Quality+And+Human+Health&amp;simid=608002520309366936&amp;ck=2DF15059B364C2EB7DF91F4B5D75B791&amp;selectedIndex=2&amp;FORM=IRPRST&amp;ajaxhist=0">fracking</a> and other potentially environmentally harmful oil and natural gas activities.
The much-watched measure sailed through the GOP-controlled Legislature after voters in Denton, a university town near Dallas, banned hydraulic fracturing locally in November.
The new law limits not only the Denton ban but other actions communities could take limiting energy industry activities. It was backed by <a href="http://www.earth.com/news/fruit-eating-mammals-fertilize-the-soil-in-tropical-forests/">oil</a> and gas concerns. New Texas Law Bans Cities From Banning Fracking
Abbott said Monday he was protecting private property rights from the "heavy hand of local regulation."
He saw no contradiction in new state regulations superseding local voters' will, saying he believes "individuals have a much better idea how to run their own lives than do a bunch of government officials."Hydraulic fracturing, also called fracking, fracing, hydrofracking, fraccing, frac'ing, and hydrofracturing, is a well stimulation technique involving the fracturing of bedrock formations by a pressurized liquid. The process involves the high-pressure injection of "fracking fluid" (primarily water, containing sand or other proppants suspended with the aid of thickening agents) into a wellbore to create cracks in the deep-rock formations through which natural gas, petroleum, and brine will flow more freely. When the hydraulic pressure is removed from the well, small grains of hydraulic fracturing proppants (either sand or aluminium oxide) hold the fractures open.
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California Expands Efforts To Protect Drinking Water. California regulators on Monday expanded their list of thousands of state-permitted <a href="https://www.bing.com/search?q=oil&amp;cvid=5c0910e0a09347979e3b50cffc334168&amp;FORM=ANAB01&amp;PC=HCTS">oil</a> and gas wells where below-ground injections may be contaminating drinking-water reserves.
State water officials already have acknowledged that improperly permitted oilfield operations have contaminated underground aquifers that are federally protected because they hold current or potential sources of drinking water.
An ongoing state review ordered by the U.S. Environmental Protection Agency has yet to break that down into whether any <a href="http://www.earth.com/news/oroville-dam-californian-catastrophe/">Californian</a> is drinking contaminated water as a result of the improperly authorized oilfield operations, a state water official said.
"We don't really know yet," and the answer "is not going to be tomorrow," John Borkovich, chief of the state water board's groundwater monitoring section, told reporters. "There's a lot of data to collect."
The review by state oil and gas regulators identified in 2014 more than 2,500 oilfield wells that were injecting brine and other production and waste fluids into the federally protected water aquifers. State regulators this year and last ordered oil companies to shut 23 central California oilfield injection wells - 22 in Kern County and one in Tulare County - that officials said posed the biggest potential threat to nearby public water wells.
On Monday, regulators released a state letter sent Friday to the U.S. EPA identifying an additional 30 oilfield injection sites as high-priority potential risks to nearby water wells. State officials told reporters they believed many or all of the threatened water wells were not currently being used for drinking water or irrigation, however.
Unlike in the previous 23 oilfield operations closed by emergency state orders, regulators will wait for the oil companies in charge of those 30 drilling sites to completely assess the threat to local water wells before officials decide whether to shut those immediately as well.
For the first time, state regulators also disclosed that regulators have allowed 3,604 oil-industry wells to carry out cyclic-steam injection - a production method that repeatedly injects steam underground at high pressure -outside the approved boundaries of oilfields.
Environmental groups and some state lawmakers contend those cyclic-steam injection wells are illegal. In an email, Steven Bohlen, state oil and gas supervisor, said it was doubtful those 3,604 wells would raise any additional concerns about groundwater because they were injecting into underground areas that already contained hydrocarbon.
Bohlen added that "a higher level of scrutiny on such wells may be called for in the future."
Federal officials have approved a state timeline that would stop all oilfield injection into federally protected water aquifers in California by February 2017.
"We are making good progress in addressing concerns about water quality that we all share," said Bohlen.
Some environmental organizations want the state to stop all oilfield injection into federally protected water aquifers immediately.
"I think it's remarkable that the extent of this crisis just keeps growing and yet state officials are doing essentially nothing to address it," said Kassie Siegel, senior counsel at the Arizona-based Center for Biological Diversity. "The commonsense first step is to stop the ongoing damage."
California is the country's third-biggest petroleum-producing state. Injection wells are involved in up to 85 percent of the state's production, the oil industry says.
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Arctic Oil Drilling Preparations Continue Despite Protests. Neither a protest by hundreds of demonstrators nor a permit violation notice from the city will halt Royal Dutch Shell's use of a Seattle seaport terminal as it prepares for exploratory oil drilling in the <a href="https://www.bing.com/search?q=arctic+ocean&amp;cvid=d6543451de434e0ea018823d85e01f28&amp;FORM=ANAB01&amp;PC=HCTS">Arctic Ocean</a>, spokesmen say.
The violation notice issued Monday by the <a href="http://www.earth.com/news/wildfire-smoke-seattle-air-dangerous/">Seattle</a> Department of Planning and Development said use of Terminal 5 by a massive floating drill rig was in violation of the site's permitted use as a cargo terminal. The 400-foot Polar Pioneer and its support tug Aiviq must be removed from the terminal or Shell's host, Foss Maritime, must obtain an appropriate permit, the city indicated. Arctic Oil Drilling Preparations Continue Despite Protests
Possible fines start at $150 per day and can rise to $500 per day. The notice said the violation must be corrected by June 4. The companies can appeal and-or request extensions.
"It remains our view that the terms agreed upon by Shell, Foss and the Port of Seattle for use of Terminal 5 are valid, and it's our intention to continue loading-out our drilling rigs in preparation for exploratory drilling offshore Alaska," Shell spokesman Curtis Smith said.
"Terminal 5 is permitted to tie up ships while they are being loaded and unloaded," Foss Maritime spokesman Paul Queary said. "That is exactly what Foss is doing there."
Queary noted that both Foss and the Port of Seattle are appealing an earlier determination by the city that the use of Terminal 5 was not permitted. Monday's violation notice followed that determination.
Earlier Monday, protesters spent several hours blocking entrances to the terminal where the rig will be loaded before heading to waters off Alaska this summer.
Holding banners and flags, demonstrators marched across a bridge to Terminal 5, temporarily closing the road during Monday morning's commute. Once at the terminal, they spread out across the entrances and rallied, danced and spoke for several hours before leaving the site in the early afternoon.
Seattle City Councilmember Kshama Sawant was among the speakers. She said political leaders had failed to deal with climate change and called for "an escalating series of mass nonviolent civil disobedience until this madness is stopped," The Seattle Times reported.
Organizers had prepared to engage in civil disobedience to stop work on the drill rig, but Seattle police said Monday afternoon that no one had been arrested and the demonstration remained peaceful. A few dozen officers followed the march on foot and bicycle and kept watch at the terminal.
"I'm not planning to get arrested," protester Jennifer Jones told The Times. "It would be very inconvenient to get arrested in Washington state. We're from Portland."
The mass demonstration was the latest protest of the Polar Pioneer's arrival in Seattle. Protesters greeted the rig Thursday, and then hundreds of activists in kayaks and other vessels turned out Saturday for a protest dubbed the "Paddle in Seattle."
Smith said in an email Monday that the "activities of the day were anticipated and did not stop crews from accomplishing meaningful work in preparation for exploration offshore Alaska this summer."
There were minimal operations at Terminal 5, "so there's not much to block," Port of Seattle spokesman Peter McGraw said. The operator of Terminal 18, a major hub of port activity where the march began, closed those gates in anticipation of the demonstration, he said.
Officials have been urging people to exercise their First Amendment rights safely, and "that's what we've been seeing so far," McGraw said.
The activists say they are concerned about the risk of an oil spill in the remote Arctic waters and the effects that tapping new frontiers of oil and gas reserves will have on global warming. Officials in Alaska have touted the economic benefits that drilling could bring there and to the Pacific Northwest.
On Monday, protesters of all ages sang, rapped and danced at the vehicle gate of Terminal 5. They chanted and held signs saying "Climate Justice For All" and "You Shell Not Pass."
Lisa Marcus, 58, a musician who participated in Saturday's protest, turned up with her "Love the planet" sign for another day of activism Monday.
"We've got to wake up" to the dangers of human-caused climate change, she said, ticking off a list of environmental problems that the world is facing. "Shell is trying to make it worse, and that's not acceptable."
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Arctic Oil Drilling Preparations Continue Despite Protests

Arctic Oil Drilling Preparations Continue Despite Protests. Neither a protest...

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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Remote sensing will revolutionize the way we monitor trees

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

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



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



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



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



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



Video Credit: ESA&nbsp;&nbsp;



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



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Lesotho: Africa's "Kingdom in the Sky"

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



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



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



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



Video Credit: NASA Goddard



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



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Wetlands are a major source of methane emissions

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

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



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



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



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



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



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



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



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



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



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



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The rapid retreat of the Columbia Glacier

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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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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



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

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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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