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News articles on Greenland-Arctic

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Mongabay.com news articles on Greenland-Arctic in blog format. Updated regularly.

Caribou and reindeer population plunges 60 percent in three decades

(06/14/2009) The first ever comprehensive survey of caribou worldwide (known as reindeer in Europe) has found that the species has suffered a staggering decline. Researchers from the University of Alberta discovered that the caribou population has fallen 60 percent in half as many years. The study published in Global Change Biology points to global warming and industrial development as the reasons behind the decline.


Burning fossil fuels is disrupting nitrogen cycle

(06/04/2009) The burning of fossil fuels has disrupted the nitrogen cycle by altering that amount of nitrogen in the biosphere, according to scientists from Brown University and the University of Washington. It has long been known that fossil fuel combustion releases nitric oxides into the air—which combine with other elements to form both smog and acid rain—but until now scientists have been unsure as to the extent nitric oxide emissions have affected the natural nitrogen cycle.


Study refutes criticism of polar bear listing under the Endangered Species Act

(05/20/2009) In May 2008 the Bush Administration listed the polar bear under the Endangered Species Act (ESA). The listing immediately received allegations of being politically biased and not based on sound science. However, a new paper addresses the allegations point by point and concludes that the decision to add the polar bear under the ESA was not only scientifically sound, but right.


Cutting greenhouse gases now would save world from worst global warming scenarios

(04/14/2009) If nations worked together to produce large cuts in greenhouse gases, the world would be saved from global warming's worst-case-scenarios, according to a new study from the National Center for Atmospheric Research (NCAR). The study found that, although temperatures are set to rise this century, cutting greenhouse gases by 70 percent the globe could avoid the most dangerous aspects of climate change, including a drastic rise in sea level, melting of the Arctic sea ice, and large-scale changes in precipitation. In addition such cuts would eventually allow the climate to stabilize by the end of the century rather than a continuous rise in temperatures.


Arctic ecosystem in danger as ice thins

(04/07/2009) Recent dramatic news points to both poles undergoing transformation due to climate change. This weekend an ice bridge disintegrated on the Wilkins Ice Shelf in Antarctica, leaving the whole shelf vulnerable to melting, and then yesterday new evidence was released of the impact of warming in the Arctic. Younger thinner ice has become the dominant type in the Arctic over the past five years, reports a new study led by Research Associate Charles Fowler of the Colorado Center for Astrodynamics Research. The thinner ice does not bode well for the Arctic ecosystem, as the ice is more prone to summer melting.


Black carbon linked to half of Arctic warming

(04/05/2009) Black carbon is responsible for 50 percent of the total temperature increases in the Arctic from 1890 to 2007 according to a study published in Nature Geoscience. Since 1890 the temperature in the Arctic has risen 1.9 degrees Celsius, linking black carbon to nearly an entire degree rise in Celsius or almost two degrees Fahrenheit.


Experts forecast probability of global warming tipping points

(03/16/2009) The probability of Earth's climate passing a "tipping point" that could result in large impacts within the next two centuries is greater than 50 percent, according to research published in Proceedings of the National Academy of Sciences


Photos: 13,000 species found in Arctic, Antarctic Oceans

(02/16/2009) A marine census has documented more than 13,000 species in the Arctic and Antarctic Oceans, including several hundred that may be new to science. Conducted over a two-year period under often perilous conditions — including monster waves and dangerous polar bears — the series of 18 surveys turned up a wealth of information on the diversity, distribution and abundance of marine life. The research will also help establish a baseline for measure changes in polar ecosystems.


Global warming to strengthen Arctic storms

(02/05/2009) Arctic storms could worsen due to climate change, putting fisheries, oil and gas exploration, and sea lanes at risk, warn researchers writing in the journal Climate Dynamics.


Reindeer, a symbol of the holidays, is under increasing threat

(12/26/2008) Reindeer are beloved in the holiday season for the mystical role they play in guiding Santa from the North Pole to the world’s chimneys. However, according to a new book, reindeer, more commonly referred to as caribou, face increasing pressures from a variety of sources. The new book entitled, Caribou and the North: A Shared Future, draws an intimate portrait of the only deer species where both male and females sport horns, while outlining the dangers which may lead these unique animal to become globally endangered.


Arctic sea ice fell to the lowest volume on record in 2008

(12/17/2008) Arctic sea ice fell to the lowest volume — and second lowest extent — on record, according to the annual World Meteorological Organization (WMO) Statement on the Status of the Global Climate.


Greenland melting much faster than last year

(12/16/2008) Greenland is losing ice three times faster than last year, report researchers presenting at the meeting of the American Geophysical Union in San Francisco.


NOAA offers "dramatic evidence" of Arctic warming

(10/16/2008) Fall air temperatures 9°F (5°C) above normal, the second lowest-ever extent of summer sea ice, and the melting of surface ice in Greenland are signs of continued warming in the Arctic, according to the Arctic Report Card, an annual review of Arctic conditions by U.S. National Oceanic and Atmospheric Administration (NOAA) and its partners.


U.S. to ban oil drilling in new Arctic reserves for polar bears

(10/07/2008) The U.S. Department of the Interior will designate two Arctic reserves in areas considered critical habitat for polar bears as part of a legal settlement with environmental groups, reports Reuters. The reserves will be off-limits of oil development and must be established by June 30, 2010.


99% of Alaska's large glaciers are retreating

(10/07/2008) The bulk of glaciers in every mountain range and island group in Alaska are retreating, thinning, or stagnating, according to a new book by the U.S. Geological Survey (USGS).


Arctic sea ice "likely" hit lowest volume on record in 2008

(10/03/2008) The volume of sea ice in the Arctic has likely hit its lowest level since satellite measurements began in 1979, report researchers at the University of Colorado at Boulder's National Snow and Ice Data Center, who confirmed that Arctic sea ice extent was the second-lowest on record this year.


Arctic sea ice falls to second lowest on record

(09/16/2008) Arctic sea ice retreated to the second lowest level on record but remains about 9 percent above the low set last September, reports the NASA and the National Snow and Ice Data Center in Boulder, Colorado.


Earth already committed to 2.4-degree C rise from climate change

(09/15/2008) As of 2005 the Earth was already committed to rise of global mean temperatures by 2.4°C (4.3°F), concludes a new study published in the journal Proceedings of the National Academy of Sciences (PNAS). The conclusion is significant because the Intergovernmental Panel on Climate Change (IPCC) has warned that a rise in global temperature by 1 to 3°C will lead to catastrophic consequences, including “widespread loss of biodiversity, widespread deglaciation of the Greenland Ice Sheet, and a major reduction of area and volume of Hindu-Kush-Himalaya-Tibetan glaciers, which provide the head-waters for most major river systems of Asia.” These glaciers, predicted to shrink considerably in the next few decades, provide food and water to over two billion people.


Study confirms strong link between CO2 and climate over 70,000 years

(09/11/2008) Analysis of ice core samples from Greenland show a strong correlation between atmospheric carbon dioxide levels and abrupt changes in climate, reports a paper published in Science.


NASA: Sea ice melt opens the Northwest and Northeast Passage

(09/09/2008) An image released by NASA shows that Arctic sea ice has retreated to the point where both the Northwest Passage around North America and the Northern Sea Route around Russia are open simultaneously. The occurrence marks the first time on record that both passages have been open.


Sea level rise likely limited to 2-6 feet by 2100

(09/04/2008) Global sea level rise is unlikely to exceed 2 meters (6 1/2 feet) by the end of century argues a new study published in the journal Science.


Canada's ice shelves lost 23% of their area this summer

(09/03/2008) A 19-square-mile (50 sq km) chuck of ice shelf broke off from Canada's Ellesmere Island in the northern Arctic, reports the Associated Press. The Manhattan-sized ice shelf is now adrift in the Arctic Ocean. It is the largest of more than 83 sq mi (214 sq km) of ice shelf that has broken up in the Canadian Arctic this year.


Whale meat is back on the menu in Iceland

(09/02/2008) Whale meat is back at restaurants and food markets in Iceland, reports the WALL STREET JOURNAL.


Past decade is warmest in at least 1300 years

(09/01/2008) A reconstruction of surface temperatures over the past two thousand years provides further evidence that the northern hemisphere is now warmer than at any time in at least 1300 years. The research, published in the online edition of the Proceedings of the National Academy of Sciences, in the Northern Hemisphere are higher than those of the Medieval warm period.


Melting permafrost will be major driver of global warming

(09/01/2008) The thawing of permafrost in northern latitudes will become a major source of greenhouse gas emissions, according to a new study that more than doubles previous estimates of the amount of carbon stored in the frozen soils of Alaska and Siberia.


Sea levels may rise 2-3 times faster than expected

(08/31/2008) Global sea level rise this century from a melting Greenland ice sheet may be two to three times greater than current estimates warn researchers writing in journal Nature Geoscience.


Sea ice extent falls to second lowest on record

(08/27/2008) Arctic sea ice extent presently stands at it second-lowest level on record and could set a new low in coming weeks, reports the National Snow and Ice Data Center (NSIDC).


NASA images reveal two massive glaciers breaking apart in Greenland

(08/22/2008) Two of Greenland's largest glaciers are breaking up report researchers monitoring NASA satellite images.


Researchers evacuated due to polar bear trapped on land by melting sea ice

(08/07/2008) The Wildlife Conservation Society (WCS) evacuated five of its scientists from a remote camp in northern Alaska because of a new and unusual threat: a polar bear stuck on land due to climate change. Polar bears would normally be out on sea ice this time of year, but with recent warming the ice is miles from shore and bears are becoming increasingly trapped on land well away from their usual seal prey.


Sea ice loss may triple warming over northern Alaska, Canada, and Russia

(06/11/2008) Fast-declining Arctic sea-ice could spur rapid warming in northern Alaska, Canada, and Russia triggering thawing of permafrost and a release greenhouse gases from the frozen soils, reports a new study published in Geophysical Research Letters.


Global warming harming plant-eating animals in the Arctic

(05/21/2008) Climate change is making it more difficult for plant-eating animals in highly seasonal environments like as the Arctic to locate food, according to a new study published in the online edition of the journal Proceedings of the Royal Society B.


U.S. government bans oil development in Alaskan Arctic area

(05/16/2008) A large swathe of Alaska will be off-limits to oil development under a decision today by the Bureau of Land Management (BLM). conservationists welcomed the move.


U.S. lists the polar bear as threatened, but decision won't affect emissions rules

(05/14/2008) The U.S. Interior Department has decided to list the polar bear as a threatened species due to declining sea ice cover in the Arctic, according to the The Associated Press. Interior Secretary Dirk Kempthorne has scheduled a news conference Wednesday to announce the action.


Endangered species status of the polar bear to be decided May 15

(04/29/2008) A federal judge has ordered the Bush administration to stop delaying its decision on whether to list the polar bear as an endangered species. Environmentalists say the bear is threatened by melting sea ice in its Arctic habitat.


The Arctic's most threatened marine mammals due to climate change

(04/25/2008) A recent study has measured the sensitivity to Arctic marine mammals to climate change. The study found that the three species most vulnerable to climate change are the hooded seal, the polar bear, and the narwhal: the common thread between these species being the loss of sea ice.


Geoengineering solution to global warming could destroy the ozone layer

(04/24/2008) A proposed plan to fight global warming by injecting sulfate particles into Earth's upper atmosphere could damage the ozone layer over the Arctic and Antarctic, report researchers writing in the journal Science.


Sunshine worsens Arctic sea ice melt

(04/21/2008) Arctic sea ice is increasingly vulnerable to sunny days, concludes new research published in the journal Geophysical Research Letters.


Perennial ice disappearing in the Arctic receives little attention from the media

(03/19/2008) A big story came out on the loss of perennial ice in Arctic from NASA on Wednesday — and was mostly ignored by the media. Despite a colder winter than usual, the Arctic is losing its perennial ice (ice that lasts longer than a season) making the region even more susceptible to global warming. Perennial ice used to cover 50-60 percent of the Arctic. Results from this year's satellites show that perennial ice has decreased to less than 30 percent. In addition ice older than six years has declined from 20 percent in the eighties to six percent today.


Satellite could help reindeer in the Arctic

(03/17/2008) Researchers have used satellite data to detect Arctic conditions that cause mass starvation of hoofed animals depended on by native peoples. Some 20,000 musk oxen died on Canada's far-northern Banks Island because of such conditions during the winter several years ago. Yet, their deaths went unnoticed until the next spring. The new satellite-detection method could provide an early warning to native people, giving them a realistic chance of getting food to herds to prevent mass starvation.


Climate change leave Arctic tundra vulnerable to fire

(03/06/2008) Research from ancient sediment cores indicates that a warming climate could make the world's arctic tundra far more susceptible to fires than previously thought. The findings are important given the potential for tundra fires to release organic carbon -- which could add significantly to the amount of greenhouse gases already blamed for global warming.


Melting of permafrost could trigger rapid global warming warns UN

(02/21/2008) Melting of the Arctic permafrost is a "wild card" that could dramatically worsen global warming by releasing massive amounts of greenhouse gases, warned the U.N. on Wednesday at a meeting in Monaco.


NASA: warming is causing Greenland ice to melt faster than expected

(02/21/2008) Warming air temperatures are causing Greenland's ice sheet to melt faster than previously anticipated, reported NASA on Wednesday. Though unlikely, the complete melting of Greenland's ice sheet would raise global sea level by 23 feet.


Climate system approaching 9 critical tipping points

(02/04/2008) Earth is approaching and may pass nine important climate tipping points this century, according to research published this week in Proceedings of the National Academy of Science (PNAS).


Global warming will diminish fish catch in the Bering sea

(01/16/2008) One half of the fish caught in the U.S. annually--and almost a third worldwide--come from the Bering Sea. Yet, this vast resource is increasingly threatened by climate change. A recent study, published in Marine Ecology Progress Series, showed that global warming will greatly affect the Bering Sea's phytoplankton, the cornerstone of the sea's rich ecosystem.


Scientists: cut emissions now to avoid climate tipping point

(12/14/2007) Countries need to act soon to cut carbon dioxide emissions if the worst impacts of global warming are to be avoided, warned a panel of scientists speaking Thursday at the fall meeting of the American Geophysical Union in San Francisco.


Greenland ice sheet melting hits record in 2007

(12/11/2007) The 2007 melt extent on the Greenland ice sheet broke the 2005 summer melt record by 10 percent, making it the largest ever recorded there since satellite measurements began in 1979, according to a University of Colorado at Boulder climate scientist.


Melting of Greenland ice sheet could alter warming trend

(12/06/2007) A massive release from freshwater from the glacial Lake Agassiz 8,200 years ago triggered dramatic cooling in the North Atlantic region, report researchers writing in Science. The sudden and intense cooling, which ended the stable climate that had characterized the Holocene warm period, could have future implications for the melting of Greenland's ice sheet.


NASA: Arctic Ocean circulation reversal not due to global warming

(11/13/2007) A study published in Geophysical Research Letters shows that weakening of the Arctic Oscillation results from a cyclical process rather than climate change. The results suggest not all the large changes seen in Arctic climate in recent years are a result of long-term trends associated with global warming.


Arctic sea ice extent hits record low in September

(10/16/2007) Arctic sea ice reached a record low in September 2007, well below the previous record set in 2005 and substantially below the long-term average, according to an image released by NASA.


Northwest Passage now open for business

(09/15/2007) Melting sea ice has opened the Northwest Passage in the Arctic to navigation, reports the European Space Agency. The clearing allows direct access between the North Pacific and North Atlantic and could eventually be a cheaper shipping route that the Panama Canal.



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