e360 digest


22 Jul 2016: Ford is Developing Car Parts
Made Out of Captured Carbon Dioxide

Ford Motor Company is developing car parts made out of captured CO2 to help reduce the environmental footprint of their vehicles. The automaker is working with Novomer, a Massachusetts-based chemistry company, to convert CO2 emissions from sources like power plants into foams and plastics for use in everything from headrests, seat cushions, and instrument panels, according to The Washington Post. Most foams and plastics in Ford cars today are made out of petroleum, the Post reported, meaning that not only do the cars use fossil fuels as they drive, but also in their construction. So far, Novomer has been able to replace about half of the petroleum in foam with CO2-based materials — at least in the lab. It could be years before the technology finds its way into commercially available Ford vehicles. The company claims to be the first automaker developing CO2-based car parts.
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21 Jul 2016: South Africa’s Great White
Shark Population At Risk of Extinction

South Africa’s great white sharks are at risk of disappearing due to pollution, human interference, and a limited gene pool, according to a new study in the journal Marine Ecology Progress Series.

A great white shark.
Scientists from Stellenbosch University spent six years tracking great white populations in Gansbaai, a fishing town and shark hotspot in western South Africa. They estimated there are 350 to 520 great whites remaining along the country’s coastline — 52 percent fewer than previously thought. "The numbers… are extremely low. If the situation stays the same, South Africa's great white sharks are heading for possible extinction," Sara Andreotti, a marine biologist and lead author of the study, said in a statement. The scientists said shark nets, poaching, habitat encroachment, pollution, and loss of food were all to blame for the sharks’ demise. Low genetic diversity among the remaining sharks would make it difficult for the population to bounce back, they said.
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20 Jul 2016: Global Temperatures Continue
To Shatter Heat and Arctic Ice Records

June marked the 14th consecutive month of record-breaking heat, with global temperatures measuring 1.62 degrees F above the 20th-century average, NASA and the National Oceanic and Atmospheric Administration announced this week.

Global 2016 temperatures.
The first half of 2016 was 1.89 degrees F above last century’s average, breaking the previous January-June record set in 2015 of 0.36 degrees F above average. “2016 has really blown [2015] out of the water,” Gavin Schmidt, director of NASA's Goddard Institute for Space Studies, told reporters. Five of the first six months of this year have also set records for the smallest Arctic sea ice extent since satellite records began in 1979. Scientists said the recent record-breaking heat could be partly attributed to last year’s strong El Nino, but not entirely. “While the El Niño event… this winter gave a boost to global temperatures from October onwards, it is the underlying trend which is producing these record numbers,” Schmidt said.
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18 Jul 2016: Following El Nino, Amazon
At Risk of Intense Wildfire Season

As a result of the recent El Nino, the Amazon rainforest is the driest it has been at the start of a dry season since 2002 — setting “the stage for extreme fire risk in 2016” in the region,

The Amazon rainforest.
NASA warned in a new fire forecast for South America. The risk for wildfire this year now exceeds the risk in 2005 and 2010, years when wildfires burned large swaths of the forest, the scientists found. Terrestrial water storage, or soil moisture, is also lower than previous years, NASA said. “When trees have less moisture to draw upon at the beginning of the dry season, they become more vulnerable to fire and evaporate less water into the atmosphere,” said UC-Irvine scientist Jim Randerson, who helped create the forecast. “This puts millions of trees under stress and lowers humidity across the region, allowing fires to grow bigger than they normally would.”
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15 Jul 2016: India Plants Nearly 50 Million
Trees to Fight Air Pollution, Climate Change

India planted 49.3 million trees in just 24 hours earlier this week in an effort to raise awareness of forest conservation, air pollution, and the fight against climate change — shattering the previous world record of 847,275, set in Pakistan in 2013. Officials said more than 800,000 people in Uttar Pradesh, the country’s most populous state, turned out to help, including students, government officials, and volunteers from nonprofit groups. As part of its climate commitments in Paris last December, India has pledged to increase its forest cover to 235 million acres by 2030. So the government officials has designated more than $6.2 billion for the nation's states to host tree planting drives. “The world has realized that serious efforts are needed to reduce carbon emissions to mitigate the effect of global climate change. Uttar Pradesh has made a beginning in this regard,” the state’s chief minister Akhilesh Yadav said .
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At Ground Zero for Rising Seas,
A TV Weatherman Talks Climate

John Morales is part of a new breed of TV weather forecasters seeking to educate viewers on climate change and the threat it poses.
John Morales

John Morales
In South Florida, where porous limestone geology and sea level rise are already causing periodic flooding, he has a rapt audience. The chief meteorologist of the NBC affiliate station in Miami, Morales uses his broadcasts and Twitter feed to tie weather trends in South Florida to the broader influences of climate change. In an interview with Yale Environment 360, Morales discusses a heartening shift away from climate change skepticism among the nation’s television weather forecasters, the positive public reaction to his discussion of climate change, and the daunting threats facing the Miami area, ranked as one of the regions in the world most vulnerable to sea level rise.
Read the interview.
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13 Jul 2016: Six Years After BP Spill,
Remaining Oil More Toxic Than Ever To Fish

Six years after the Deepwater Horizon drilling rig spilled nearly three million barrels of crude oil into the Gulf of Mexico, scientists have found that ultraviolet light

Juvenile mahi-mahi.
is transforming the remaining oil into a more toxic substance that hinders the development of heart, eye, and brain function in fish. The research, led by scientists at the University of California, Riverside and the University of Miami, exposed embryos and larvae of mahi-mahi from the Gulf of Mexico to what they called weathered (exposed to years of sunlight) and un-weathered oil (taken from the drilling site) from the Deepwater Horizon spill in 2010. Compared to fish exposed to un-weathered oil, the fish exposed to the weathered oil experienced impaired eye and neurological function, reduced heart rates, and a buildup of excess fluid in the heart.
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12 Jul 2016: Climate Change Has Shifted
The World’s Cloud Cover Over Past 30 Years

Warming global temperatures have altered the distribution of clouds across the Earth in recent decades, according to new research published in the journal Nature.

Global cloud cover.
Mid-latitude storm clouds have shifted polewards, dry subtropical zones have expanded in size, and the tops of clouds have gotten higher as a result of a warmer troposphere and cooler stratosphere, according to the study, which relied on satellite images taken between 1983 and 2009. Researchers said these shifts in cloud cover could further exacerbate climate change. As cloud systems shift toward the poles, where there’s less solar radiation, more sunlight will reach the Earth’s surface near the equator, boosting temperatures. Also, taller, thicker clouds trap more heat. “We now have a thicker blanket, which is also a warming effect,” said Joel Norris, a climate scientist at the Scripps Institution of Oceanography in San Diego who helped lead the study.
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11 Jul 2016: Tax Credits Double Projections
Of Solar Growth in One U.S. Market

A new market report estimates that U.S. rooftop solar in the Mid-Atlantic region will likely increase exponentially over the next five years thanks to extended federal tax credits. The Business Energy Investment Tax Credit that Congress unexpectedly renewed last December gives homeowners and developers 30 percent back on solar panel installations and other renewable energy investments through 2019. The program could help solar installation growth in the Mid-Atlantic reach over 9,000 megawatts by 2021, doubling previous projections, according to the report, which was conducted by market research firm CreditSights. Such a jump would alleviate the need for U.S. power companies to subsidize electric needs with nuclear, natural gas, or coal during peak energy consumption periods. “If rooftop solar grows more than 30 percent, there’s no reason we couldn’t see electricity demand growth go negative in the coming years,” Greg Jones, a New York-based analyst with CreditSights, told Bloomberg News.
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08 Jul 2016: Hundreds of Deaths in 2003
Heat Wave Linked to Climate Change

A new study suggests that human-caused climate change could be responsible for a significant portion of the 70,000 deaths that occurred during the record-breaking 2003 European heat wave. The research, published in the journal Environmental Research Letters, combined climate modeling with health data for hundreds of fatalities that summer. Climate change, the study found, increased the likelihood of heat-related losses by nearly 70 percent in Paris and 20 percent in London. Out of 735 heat-related deaths in Paris, 506 were attributable to global warming, as were 64 out of 315 deaths in London. "Until recently, whenever we talked about climate change we talked about the globally averaged increase in temperature of 1 degree and people just don't really know or frankly care about that," lead study author and Oxford University scientist Daniel Mitchell told InsideClimate News. "But now… people can really start to understand that these are impacts we're seeing now, not in the future."
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07 Jul 2016: California’s Redwood Trees
Are Best in the World at Storing CO2

California’s ancient redwood trees store more carbon dioxide per acre than any other forest in the world, including tropical rain forests like the Amazon, according to new research published in the journal Forest Ecology and Management.

California redwood trees.
The findings are the result of a seven-year study by scientists at Humboldt University and the University of Washington. Redwoods store 2,600 metric tons of carbon per hectare (2.4 acres), more than double the absorption rate of the Pacific Northwest’s conifer trees or Australia’s eucalyptus forests, the study found. The main reason redwoods surpass all others in CO2 storage is their longevity, the scientists said. "The story of carbon is huge," Robert Van Pelt, a scientist at Humboldt State University and co-author of the research, told The Mercury News. "The carbon part of a redwood may be more important than the lumber part in the coming decades."
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06 Jul 2016: As Oceans Become More Acidic,
Mussels Could Lose Ability to Hang On

Rising carbon dioxide emissions have caused the world’s oceans to become 30 percent more acidic since the Industrial Revolution, affecting everything from marine life’s ability to build shells

Trossulus byssus mussels.
to the pH level of fishes’ blood. Now, scientists have discovered that more acidic water also prevents mussels from attaching to rocks and other surfaces, which could have ramifications on the global food chain, the economy, and ecosystem health. Oceans today have a pH of about 8.1. When the pH drops below 7.6, the adhesive plaque that cements mussels to hard surfaces becomes weaker, according to the new research by scientists at the University of Washington. Unattached mussels are easy prey for predators like crabs, fish, and sea stars. Mussels play an important role in filtering pollutants from waterways. They are also a critical food source for coastal communities, with the industry worth an estimated $1.4 billion.
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05 Jul 2016: Paris Bans All Pre-1997
Cars During Weekdays to Fight Pollution

Starting this month, Paris is banning all cars built before 1997 from driving within city limits Monday through Friday in an effort to lower air pollution levels.

Commuter traffic in Paris.
Paris has been struggling with smog for years and its pollution levels have briefly topped those in Beijing. Similar to Mexico City and New Delhi, Paris banned even- and odd-numbered license plates on alternating days to fight smog earlier this year. It has also championed cleaner transit options, such as bike- and electric car-sharing programs. Not everyone is enthused, however: The French consumer group 40 Million Drivers said the ban could impact up to 500,000 vehicle owners in and around Paris, particularly low-income families. "When you have an old car in France, it's because you don't have the money to buy a new one," Pierre Chasseray, the executive director of 40 Million Drivers, told NPR. "Public transport is a solution, but it's not the solution for everybody."
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30 Jun 2016: Rare Ancient Bird Wings Found
In Perfect Condition Preserved in Amber

Researchers digging through amber mined in Myanmar have discovered one of the most pristine pairs of ancient bird wings ever found — tiny, fossilized, feathered appendages belonging to a hummingbird-sized create that lived roughly 99 million years ago. Preserved in amber — clear, fossilized tree resin — the wings belonged to the group Enantiornithes. The preserved wings came from a bird that was much closer in appearance to modern-day birds than other bird species of that era. Researchers have discovered other ancient bird parts in amber, but usually just small fragments of isolated feathers. The pair of wings discovered in Myanmar by a Canadian team of researchers was preserved in minute detail, with hair, feathers, and bones arranged in their original form. The scientists said that even the feathers’ color was still visible. “It gives us all the details we could hope for — it’s the next best thing to having the animal in your hand,” said one scientist.
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29 Jun 2016: U.S. Solar Energy Market
Experiencing an Unprecedented Boom

Thanks to a renewal of federal tax credits and a continuing steep drop in the price of photovoltaic panels, U.S. solar energy production is surging to record highs. New market reports show that the U.S. solar industry is expected to install 14.5 gigawatts of solar power in 2016, nearly double the record 7.5 gigawatts installed last year. (Less than 1 gigawatt of solar power was installed in 2010.) Revenues from solar installations increased 21 percent from 2014 to 2015, surpassing $22 billion. In terms of megawatts of electricity produced, new solar installations are expected in 2016 to surpass all other new sources, including natural gas-fired power plants. The extension of a 30-percent federal tax credit and a sharp drop in prices — the wholesale price of solar panels has fallen from $4 per watt in 2008 to $0.65 per watt today — are contributing to the boom. U.S.-based Solar World is building a giant solar panel factory in Buffalo, New York that is expected to employ 3,500 people.
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28 Jun 2016: U.S., Canada, and Mexico to
Set 50 Percent Renewable Power Goal by 2025

The United States, Canada, and Mexico will pledge on Wednesday to generate 50 percent of their electricity from non-fossil fuel sources by 2025, according to U.S. officials. The three nations are expected to set the ambitious goal at a North American Leaders Summit in Ottawa. The commitment includes not just renewable sources of power such as energy and wind, but also hydropower, nuclear power, carbon capture and storage at coal-fired power plants, and gains in energy efficiency. Under that definition, the three nations now produce 37 percent of their electricity from renewable sources. Canada is leading the way in non-fossil fuel power generation, with 59 percent of its electricity coming from hydropower and 16 percent from nuclear plants. Continent-wide cooperation on clean energy issues has improved since the election last year of Justin Trudeau as Canada’s Prime Minister.
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27 Jun 2016: Abandoned Coal Mines Emit
As Much CO2 as a Small Power Plant

Thousands of abandoned coal mines dot the U.S. landscape, vestiges of old fossil fuel boomtowns and industrial hubs.

An abandoned coal mine in Ashland, Penn.
But despite no longer producing coal, these sites are still contributing to climate change by leaking carbon dioxide into the atmosphere, according to a recent study by scientists at West Virginia University. The total amount of CO2 released annually by 140 abandoned sites in Pennsylvania is equal to that “of a small coal-fired power plant,” says the study, published in Environmental Earth Sciences. CO2 is created when sulfuric acid generated during the mining process interacts with carbonate rocks. It is then carried to the surface in runoff water. “Although considerable research has been conducted regarding the environmental legacy of abandoned mine lands, their role in carbon cycling is poorly [understood],” wrote the scientists. The findings “suggest that these waters may be important to carbon cycling on a regional scale.”
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24 Jun 2016: Cities on Six Continents
Join Forces to Combat Climate Change

Mayors from more than 7,100 cities on six continents announced this week that they are creating a new alliance to fight climate change at the local level.

New York City
The new group — a merger of the European Union-based Covenant of Mayors and the United Nations-backed Compact of Mayors — represents a combined 600 million people in 119 countries. The initiative aims to set city-based CO2 emissions cuts, build sustainable communities, and foster the sharing of resiliency policies and technologies. “Cities are key to solving the climate change challenge,” former New York Mayor Michael Bloomberg and Maroš Šefčovič, vice-president of the European Commission, wrote in The Guardian. “They account for most of the world’s carbon emissions, and mayors often have control over the largest sources. Cities can also act quickly to confront climate change, without the political and bureaucratic hurdles that often hold back national governments.”
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23 Jun 2016: Scientists Discover Contagious
Cancer in More Species of Shellfish

Last year, scientists discovered a type of contagious cancer in soft-shell clams in which free-floating cells transmitted the disease from one animal to another.

Mussels
Now, a team of Columbia University researchers is reporting that contagious cancers in the ocean may be more common than previously thought and can not only jump from animal to animal, but across species. According to the new study published in Nature, the leukemia-like cancer, known as disseminated neoplasia, has been found in three more species of bivalves: mussels, cockles, and golden carpet shell clams. The cancer cells were genetically distinct from their hosts, indicating they originated elsewhere. Transmissible cancer had previously been found in Tasmanian devils and dogs, but there’s no indication that humans are at risk. “I would only worry deeply if I was a mollusk,” Stephen P. Goff, a molecular biologist at Columbia University and co-author of the study, told The New York Times.
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Unable to Endure Rising Seas,
Alaskan Villages Stuck in Limbo

A number of Alaska Native villages have been impacted so severely by sea-level rise and other climate-induced threats, they have decided to relocate.
Robin Bronen

Robin Bronen
But there is no U.S. agency designated to help pay for and implement an entire community’s move. Robin Bronen, a senior scientist with The Institute of Arctic Biology at the University of Alaska, says that’s a huge problem. In an interview with Yale Environment 360, she explains that because there is no government process to facilitate such relocations, none of these villages have been able to move, despite their resolve to do so. And in a bureaucratic Catch-22, these communities no longer receive the infrastructure repair funds they were once entitled to. Pointing to future sea level rise along U.S. coasts, Bronen says that “if we don't figure out how to create this relocation institutional framework, we're talking about humanitarian crises for millions of people living in the United States.”
Read the interview.
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22 Jun 2016: New NASA Visualization
Illustrates Severity of Recent Texas Floods

Texas experienced record flooding earlier this month after two weeks of near-constant storms dumped heavy rain on the eastern part of the state.

Rainfall accumulation during recent Texas floods.
As much as 30 inches of rain fell, causing thousands of residents from Dallas to Houston to evacuate, 15 deaths, and billions of dollars in damage. Now, NASA’s Scientific Visualization Studio has released a video illustrating rainfall accumulation in the U.S. from May 27 to June 9, highlighting just how severe and protracted the Texas storms were. Warmer air holds more moisture, so as temperatures have risen in recent decades, Texas has experienced more severe flooding. Houston, for example, has seen a 167 percent increase in the heaviest downpours since the 1950s. Five major floods have occurred in the Houston area in the past year.
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20 Jun 2016: 2015 Deadliest Year for
Environmentalists on Record, Finds Report

Last year was the deadliest year on record for environmentalists, according to a new report from Global Witness, a nonprofit that tracks environmental and human rights abuses worldwide.

Indigenous people protest a dam in the Amazon.
One hundred and eighty-five people were killed trying to stop development of land, forests, and rivers in 16 countries in 2015 — equal to more than three people per week. The tally represents a 59 percent increase over 2014, and is double the number of journalists killed in the same period, according to the report. Environmentalists were most at risk in Brazil, the Philippines, and Columbia, which had 50, 33, and 26 killings last year, respectively. “This report sheds light on the acute vulnerability of indigenous people, whose weak land rights and geographic isolation make them particularly exposed to land grabbing for natural resource exploitation,” the Global Witness authors wrote. “In 2015, almost 40% of victims were indigenous.”
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17 Jun 2016: California’s Roadside Trees
Provide $1 Billion in Municipal Services

The trees that line California’s streets and boulevards are worth an estimated $1 billion a year for the work they do in removing air pollution, storing CO2, cooling homes, and reducing rain runoff, among other municipal services,

Palm trees in Los Angeles, California.
according to a new analysis by the U.S. Forest Service and the University of California, Davis. The state’s 9.1 million street trees pull nearly 568,000 tons of carbon from the atmosphere annually, equal to taking 120,000 cars off the road, the study, published in the journal Urban Forestry & Urban Greening, found. The scientists say California has room to put another 16 million trees along its roads if it wants. "We've calculated for every $1 spent on planting or maintaining a street tree, that tree returns, on average, $5.82 in benefits," forester and lead author Greg McPherson said in a statement. "These trees are benefiting their communities 24 hours a day, 365 days a year."
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16 Jun 2016: Some Coral Reef “Bright Spots”
Remain, Despite Devastating Bleaching

After decades of being overfished and mismanaged, and the worst bleaching event on record this year, scientists reported in the journal Nature this week that there remain some “bright spots” among the world’s coral reefs

Coral reef on the Palmyra Atoll in the Pacific.
– systems that are doing better than anyone expected. The study examined 18 different factors at 2,514 reefs in 46 nations, including water depth, tourism, fishing, and population density. Those systems that were still thriving — defined by the scientists as having more fish than expected — tended to be managed by, and accessible only to, local fishermen and indigenous groups. This included reefs in places like the Solomon Islands, parts of Indonesia, Papua New Guinea, and Kiribati. “There’s been a narrative about local involvement, but it’s often very token,” Joshua Cinner, a research fellow at James Cook University in Australia and lead author of the study, told The Atlantic. He said there should be more opportunity for “communities to creatively confront their own challenges.”
PERMALINK

 

15 Jun 2016: Clean Energy Could Cost Up To
59 Percent Less by 2025, Report Finds

The cost of solar energy could drop by as much as 59 percent by 2025, from 13 cents to 6 cents per kilowatt hour, according to a new report from the International Renewable Energy Agency.

Rooftop solar panels in Hannover, Germany.
Offshore wind could become 35 percent cheaper, and onshore wind 26 percent cheaper, by 2025. The cost of building renewable energy facilities is also likely to fall, by as much as 57 percent by the middle of next decade, the report found. “Historically, cost has been cited as one of the primary barriers to switching from fossil-based energy sources to renewable energy sources, but the narrative has now changed,” Adnan Z. Amin, director-general of IRENA, said in a statement. “To continue driving the energy transition, we must now shift policy focus to support areas that will result in even greater cost declines and thus maximize the tremendous economic opportunity at hand.”
PERMALINK

 

14 Jun 2016: CO2 Crosses 400 ppm For Last
Time “Within Our Lifetimes,” Study Warns

Atmospheric concentrations of CO2 will stay permanently above 400 parts per million (ppm) this year due to El Nino—and will likely not drop below that number again “within our lifetimes,” according to a study published this week in the journal Nature.

CO2 measurements from 1958 to today.
The milestone represents a symbolic threshold that scientists and environmentalists had long sought to avoid. Greenhouse gases have jumped 48 percent from the pre-industrial era, and 29 percent in just the past 60 years, from 315 ppm to 407 ppm today. CO2 concentrations tend to ebb and flow with the seasons, dipping as vegetation grows in summer and increasing during winter. But in the study published in Nature, scientists at the U.K.’s Met Office and University of California, San Diego warned that because of the recent El Nino, CO2 concentrations wouldn’t fall below 400 ppm this year, or any year into the distant future.
PERMALINK

 

California Condor Population
Reaches New Heights in 2015

Earlier this year, the U.S. Fish and Wildlife Service announced what it called a milestone for the California condor: More chicks had hatched and fledged in the wild during 2015 than the number of condors that died,

California condor
bringing the total in the wild to 270. It was perhaps the most promising news about the condor in decades. After their numbers dropped to just 22 in the 1980s, the U.S. government began rounding up the birds for a last-ditch captive breeding program, then gradually released newly bred birds to the wild. The program was highly controversial, and the condors’ return to the wild over the past two and a half decades has been fraught with peril. But biologists have noted encouraging signs in recent years: The birds have expanded their range, are more likely to engage in wild behaviors, and have begun foraging for their own food.
Read more.
PERMALINK

 

10 Jun 2016: Researchers Find a Way to Turn
CO2 Into Rock at Iceland Power Plant

Scientists have discovered a new way to successfully capture carbon dioxide and transform it into rock deep underground. The experiment, published in this week’s Science,

Section of rock made from mixing CO2 and water.
was conducted at the Hellisheidi power plant in Iceland, the world’s largest geothermal facility. When the plant — which helps power Iceland’s capital, Revkjavik — pumps up volcanically heated water to turbines, gases like carbon dioxide and hydrogen sulfide often come up as well. A team of U.S. and European researchers, led by Columbia University's Lamont-Doherty Earth Observatory, captured the CO2, mixed it with the used volcanic water, and re-injected it into basalt rocks up to a half-mile underground. More than 95 percent of the mixture naturally solidified into carbonate minerals in less than two years. Previous estimates predicted that the process could take hundreds, if not thousands, of years.
PERMALINK

 

09 Jun 2016: Fish Can Recognize Human
Faces, According to One New Study

Fish now join humans, monkeys, primates, and birds as one of the few animals able to distinguish faces, according to new research published in the journal Scientific Reports this week.

James St. John/Wikimedia
The skill requires a sophisticated combination of perception and memory— and generally, a neocortex. But scientists at the University of Oxford in England and the University of Queensland in Australia were able to train archerfish to recognize human faces, despite the fact that these tropical fish don’t have complex brain structures. Archerfish typically feed by spitting water at prey, like insects. So the scientists taught the fish to spray water at images of particular human faces in exchange for food. Archerfish identified the correct person 81 percent of the time.
PERMALINK

 

08 Jun 2016: Sea Ice Hits New Spring Low
In the Arctic, Says Federal Agency

Sea ice extent in the Arctic hit a new record spring low last month, measuring 537,000 square miles below average — an area twice the size of Texas, the National Snow and Ice Data Center announced this week.

NASA/GSFC
Sea ice breaking up in the Beaufort Sea in May.
Last month’s Arctic sea ice extent was the lowest May sea ice measurement since satellite monitoring began 38 years ago and follows a string of record low ice this winter. “We didn’t just break the old May record, we’re way below the previous one,” NSIDC Director Mark Serreze told Climate Central. The Arctic’s snow cover also hit record lows this year, with April having the lowest snow cover for that month on record and May the fourth lowest. The Arctic has warmed twice as fast as the rest of the world in recent decades, but scientists say that this year’s strong El Niño in the Pacific Ocean could be ramping up temperatures even more. Temperatures at the pole have been 4 to 11 degrees F above average this winter. “Will we end up with very low sea ice extent this September?” Serreze said. “I think pretty much absolutely.”
PERMALINK

 

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