tag:news.mongabay.com,2005:/xml/greenland-arctic1 Greenland-Arctic news from mongabay.com 2012-02-09T22:06:53Z tag:news.mongabay.com,2005:Article/9085 2012-02-09T22:03:00Z 2012-02-09T22:06:53Z Opposition rising against U.S. Arctic drilling Drilling in the Arctic waters of the U.S. may become as contested an issue as the Keystone Pipeline XL in up-coming months. Scientists, congress members, and ordinary Americans have all come out in large numbers against the Obama Administration's leases for exploratory drilling in the Beaufort Sea and the Chuckchi Sea. Jeremy Hance tag:news.mongabay.com,2005:Article/8943 2012-01-11T19:36:00Z 2012-01-12T20:05:59Z Seals, birds, and alpine plants suffer under climate change <table align="left"><tr><td><img src="http://photos.mongabay.com/j/Blanchon-idlm2006.harpseak.150.jpg" align="left"/></td></tr></table>The number of species identified by scientists as vulnerable to climate change continues to rise along with the Earth's temperature. Recent studies have found that a warmer world is leading to premature deaths of harp seal pups (Pagophilus groenlandicus) in the Arctic, a decline of some duck species in Canada, shrinking alpine meadows in Europe, and indirect pressure on mountain songbirds and plants in the U.S. Scientists have long known that climate change will upend ecosystems worldwide, creating climate winners and losers, and likely leading to waves of extinction. While the impacts of climate change on polar bears and coral reefs have been well-documented, every year scientists add new species to the list of those already threatened by anthropogenic climate change. Jeremy Hance tag:news.mongabay.com,2005:Article/8889 2011-12-22T16:31:00Z 2011-12-22T17:42:42Z Top 10 Environmental Stories of 2011 <table align="left"><tr><td><img src="http://photos.mongabay.com/j/Sunny_Skies_over_the_Arctic_in_Late_June_2010.NASA.150.jpg" align="left"/></td></tr></table>Many of 2011's most dramatic stories on environmental issues came from people taking to the streets. With governments and corporations slow to tackle massive environmental problems, people have begun to assert themselves. Victories were seen on four continents: in Bolivia a draconian response to protestors embarrassed the government, causing them to drop plans to build a road through Tipnis, an indigenous Amazonian reserve; in Myanmar, a nation not known for bowing to public demands, large protests pushed the government to cancel a massive Chinese hydroelectric project; in Borneo a three-year struggle to stop the construction of a coal plant on the coast of the Coral Triangle ended in victory for activists; in Britain plans to privatize forests created such a public outcry that the government not only pulled back but also apologized; and in the U.S. civil disobedience and massive marches pressured the Obama Administration to delay a decision on the controversial Keystone XL pipeline, which would bring tar sands from Canada to a global market. Jeremy Hance tag:news.mongabay.com,2005:Article/8814 2011-12-07T17:07:00Z 2011-12-07T17:20:20Z Discovery Channel backtracks, promises to air climate change episode of new Frozen Planet series Discovery Channel has announced that it will, in fact, air the last episode of the new series Frozen Planet, which focuses solely on the impact of climate change at the world's poles. By the creators of universally-acclaimed Planet Earth, the full series explores the wildlife and environs of the Arctic and Antarctic, but the Discovery Channel came under fire after it announced it would not air the last episode, called "On Thin Ice", which deals specifically with climate change. A petition on Change.org garnered 75,000 signatures calling on the Discovery Channel to air the full series, before the network caved and announced it would do so. Jeremy Hance tag:news.mongabay.com,2005:Article/8767 2011-11-30T16:21:00Z 2011-11-30T16:38:34Z Another record breaker: 2011 warmest La Niña year ever As officials meet at the 17th UN Climate Summit in Durban, South Africa, the world continues to heat up. The UN World Meteorological Organization (WMO) has announced that they expect 2011 to be the warmest La Niña year since record keeping began in 1850. The opposite of El Nino, a La Niña event causes general cooling in global temperatures. Jeremy Hance tag:news.mongabay.com,2005:Article/8738 2011-11-24T18:43:00Z 2011-11-24T19:04:57Z Arctic sea ice melt 'unprecedented' in past 1,450 years Recent arctic sea ice loss is 'unprecedented' over the past 1,450 years, concludes a reconstruction of ice records published in the journal <i>Nature</i>. Rhett Butler tag:news.mongabay.com,2005:Article/8709 2011-11-17T15:36:00Z 2011-11-17T15:41:58Z Discovery Channel cuts climate change episode from Planet Earth follow-up The new series Frozen Planet, by the creators of the super-popular and universally-acclaimed Planet Earth, details the wildlife and changing nature of the world's poles: the Antarctic and the Arctic. But while the four-year production filmed seven episodes, American audiences will only be treated to six. Discovery Channel has dropped the last episode that deals specifically with climate change. Jeremy Hance tag:news.mongabay.com,2005:Article/8602 2011-10-26T19:31:00Z 2011-10-26T19:42:50Z Photos: camera traps reveal oil's unexpected impact on Arctic birds <table align="left"><tr><td><img src="http://photos.mongabay.com/j/arctic.birdsnest.wcs.150.jpg" align="left"/></td></tr></table>A study in the Alaskan Arctic, employing camera traps, has shown that oil drilling impacts migrating birds in an unexpected way. The study found that populations of opportunistic predators, which prey on bird eggs or fledglings, may increase in oil drilling areas, putting extra pressure on nesting birds. Predators like fox, ravens, and gulls take advantage of industry infrastructure for nests and dens, moving into areas that may otherwise be inhospitable. In addition, garbage provides sustenance for larger populations of the opportunists. Jeremy Hance tag:news.mongabay.com,2005:Article/8569 2011-10-19T16:03:00Z 2011-10-19T16:23:40Z Photos: satellite tracking of the unicorn of the sea <table align="left"><tr><td><img src="http://photos.mongabay.com/j/Aerial-view-of-Narwhal-WWF.150.jpg" align="left"/></td></tr></table>A new program aims to track one of the ocean's most enigmatic creatures: the narwhal (Monodon monoceros). Tagging nine narwhales in August, researchers plan to track the species in order to gain new insights about how the little-known toothed whale will withstand a rapidly melting Arctic due to climate change. "[This] is a chance to better understand these animals while their world changes around them. We know narwhals are often associated with sea ice, and we know the sea ice is shrinking. WWF is trying to understand how narwhals, as well as all other ice associated animals in the arctic can adapt to a changing environment," says Peter Ewins with WWF-Canada. Jeremy Hance tag:news.mongabay.com,2005:Article/8520 2011-10-06T19:53:00Z 2011-10-06T19:55:10Z Featured video: Arctic ice melt creates mass walrus 'haul-outs' The disintegration of the Arctic sea ice, which hit the second lowest record this year, is forcing a number of Arctic animals to change their behavior. Jeremy Hance tag:news.mongabay.com,2005:Article/8514 2011-10-05T22:32:00Z 2011-10-05T22:36:57Z Obama administration opens more of the Arctic to drilling Nearly 500 Arctic oil and gas leases from the Bush administration have been restarted this week by the Obama administration. Known as Chukchi Lease 193, the various leases had been held up in court after environmental groups and indigenous groups challenged them, citing a significant lack of baseline information about the Chukchi Sea ecosystem. The Obama administration now says that many of the ecosystem gaps need not be filled, but Arctic indigenous and environmental groups disagree. Jeremy Hance tag:news.mongabay.com,2005:Article/8486 2011-09-29T22:31:00Z 2011-09-29T22:38:30Z Deepwater spill 'meets the Titanic': groups sue to stop Arctic drilling Following the Obama administration's approval of Royal Dutch Shell to drill in the Arctic's Beaufort Sea, a wide-swathe of environmental have filed a lawsuit to stop the drilling, which could begin as early as next summer. Those filing the lawsuit today blasted Shell for what they perceived as a pathetic oil spill response plan, and the Obama administration for acquiescing to the big oil company. Jeremy Hance tag:news.mongabay.com,2005:Article/8473 2011-09-28T21:02:00Z 2011-09-28T23:20:13Z Climate change shocker: Canada's ice shelves halved in six years After the Arctic sea ice extent hit its second lowest size on record this summer&#8212;or lowest (depending on the source)&#8212;comes another climate change shocker: in the past six years Canada's millennia-old ice shelves have shed nearly half their size. One ice shelf&#8212;the Serson shelf&#8212;is almost entirely gone, while another&#8212;the Ward Hunt shelf&#8212;has split into two distinct shelves. The ice shelves have lost 3 billion tons in this year alone. Jeremy Hance tag:news.mongabay.com,2005:Article/8384 2011-09-12T18:27:00Z 2011-09-12T23:31:13Z Northwest Passage open as sea ice falls to lowest cover ever recorded Arctic sea ice cover fell to its lowest level on record, report researchers from the University of Bremen. Rhett Butler tag:news.mongabay.com,2005:Article/8355 2011-09-01T20:10:00Z 2011-10-12T12:05:02Z Mass walrus haul-outs, polar bear cub mortality linked to climate change <table align="left"><tr><td><img src="http://photos.mongabay.com/j/DSC_5048.walrus.ice.150.jpg " align="left"/></td></tr></table>Recent, unprecedented walrus haul-outs and increased instances of long-distance swims by polar bears show the direct impacts on wildlife of dwindling Arctic sea ice from climate change. These threatened species also face the prospect of offshore drilling in the Arctic after the Obama Administration recently approved a number of plans to move forward on oil exploration. At least 8,000 walruses hauled out on an Alaskan beach along the Chukchi Sea on August 17. Only a day before, the U.S. Geological Survey announced it would begin tagging walruses near Point Lay, Alaska to study how a lack of sea ice is affecting the species. Jeremy Hance tag:news.mongabay.com,2005:Article/8285 2011-08-16T16:13:00Z 2011-08-16T16:14:39Z Shell spills over 50,000 gallons of oil off Scotland Yesterday, Royal Dutch Shell estimated that to date 54,600 gallons of oil had spilled into the North Sea off the east coast of Scotland, spreading some 19 miles wide (30 kilometers) at its maximum. While the company stopped the initial leak on Thursday, it has now announced that the oil has found a 'second pathway' and is still leaking into the sea around 84 gallons a day. Jeremy Hance tag:news.mongabay.com,2005:Article/8269 2011-08-10T16:39:00Z 2011-08-10T16:40:58Z Arctic sea ice in free fall: new record low for July Average Arctic sea ice extent hit a new record low for July according to the National Snow and Ice Data Center (NSIDC).If the melt continues apace, the sea ice extent could hit its lowest point since record keeping by satellite began 32 years ago. However, ice loss slowed through the second half of July as weather grew colder in the Arctic, and by the end of the month was slightly above conditions in 2007, in which the lowest sea ice extent ever was measured. Jeremy Hance tag:news.mongabay.com,2005:Article/8260 2011-08-08T17:28:00Z 2011-08-09T13:17:12Z Arctic open for exploitation: Obama administration grants Shell approval to drill Less than a year and a half after the oil spill in the Gulf of Mexico, the Obama administration has bucked warnings from environmentalists to grant preliminary approval to oil giant, Royal Dutch Shell, to drill off the Arctic coast. Exploratory drilling will occur just north of the western edge of the Arctic National Wildlife Refuge (ANWR) in the Beaufort Sea, home to bowhead and beluga whales, seals, walruses, polar bears, and a wide variety of migrating birds. Jeremy Hance tag:news.mongabay.com,2005:Article/8191 2011-07-21T16:31:00Z 2011-07-21T18:35:55Z 'Heatwave' in Arctic decimating sea ice Arctic sea ice could hit a record low by the end of the summer due to temperatures in the North Pole that are an astounding 11 to 14 degrees Fahrenheit (6 to 8 degrees Celsius) above average in the first half of July, reports the National Snow and Ice Data Center (NSIDC). Already the sea ice extent is tracking below this time in 2007, which remains the record year for the lowest sea ice extent. The sea ice hits its nadir in September before rebounding during the Arctic winter. Jeremy Hance tag:news.mongabay.com,2005:Article/8087 2011-06-29T17:43:00Z 2011-06-29T18:01:54Z Last search for the Eskimo curlew <table align="left"><tr><td><img src="http://photos.mongabay.com/j/Numenius_borealis.150.jpg" align="left"/></td></tr></table>The Eskimo curlew is (or perhaps, 'was') a small migratory shorebird with a long curved beak, perfect for searching shorelines and prairie grass for worms, grasshoppers and other insects, as well as goodies including berries. Described as cinnamon-colored, the bird nested in the Arctic tundra of Alaska and Canada during the summer and in the winter migrated en masse as far south as the Argentine plains, known as the pampas. Despite once numbering in the hundreds of thousands (and perhaps even in the millions), the Eskimo curlew (<i>Numenius borealis</i>) today may well be extinct. The US Fish and Wildlife Service (USFWS) has decided to conduct a final evaluation of the species to determine whether its status should be moved from Critically Endangered to Extinct, reports Reuters. Jeremy Hance tag:news.mongabay.com,2005:Article/8043 2011-06-21T18:46:00Z 2011-07-11T13:25:16Z The truth about polar bears and climate change <table align="left"><tr><td><img src="http://photos.mongabay.com/j/polar_bears_01.ngm.150.jpg " align="left"/></td></tr></table>Although scientists say innumerable species are threatened by climate change, polar bears have been the global symbol of the movement to rein-in greenhouse gas emissions. This is perhaps not surprising, since polar bears are well known to the public—even though they inhabit a region largely absent of humans—and they make a big impression. Their glaringly white coat contrasts with their deadly skills: as the world's biggest terrestrial predators, they are capable of killing a seal with single blow. When young they are ridiculously adorable, but when adults they are stunning behemoths. But that's not all. Unlike many other species, the perils of climate change are also easy to visualize in connection with polar bears: their habitat is literally melting away. Jeremy Hance tag:news.mongabay.com,2005:Article/8038 2011-06-20T16:26:00Z 2011-06-20T18:34:37Z Ocean prognosis: mass extinction <table align="left"><tr><td><img src="http://s3.amazonaws.com/mongabay/indonesia/150/sulawesi-bunaken_0084.jpg" align="left"/></td></tr></table>Multiple and converging human impacts on the world's oceans are putting marine species at risk of a mass extinction not seen for millions of years, according to a panel of oceanic experts. The bleak assessment finds that the world's oceans are in a significantly worse state than has been widely recognized, although past reports of this nature have hardly been uplifting. The panel, organized by the International Program on the State of the Ocean (IPSO), found that overfishing, pollution, and climate change are synergistically pummeling oceanic ecosystems in ways not seen during human history. Still, the scientists believe that there is time to turn things around if society recognizes the need to change. Jeremy Hance tag:news.mongabay.com,2005:Article/8034 2011-06-19T16:21:00Z 2011-06-19T16:22:09Z Greenpeace head arrested after nonviolent protest on Arctic oil rig <table align="left"><tr><td><img src="http://photos.mongabay.com/j/Sunny_Skies_over_the_Arctic_in_Late_June_2010.150.jpg" align="left"/></td></tr></table>Kumi Naidoo, the head of Greenpeace, has been arrested after scaling a deepwater oil rig in the Arctic run by Cairn Energy. Naidoo was attempting to deliver a petition to the captain signed by 50,000 people demanding that Cairn Energy release details on how it would respond to an oil spill. "For me and for many people around the world this is now one of the defining environmental struggles of our time," Naidoo said on a video before scaling the rig. "It's a fight for sanity against the madness that sees the disappearance of the Arctic ice not as a warning, but as an opportunity to seek further profits." Jeremy Hance tag:news.mongabay.com,2005:Article/8002 2011-06-09T17:40:00Z 2011-06-09T17:49:37Z Russia and Norway carve up wildlife-rich Arctic sea for fossil fuels As climate change melts the Arctic sea ice, nations are rushing to carve up once-inaccessible areas for oil and gas exploitation, industrial fishing, and shipping routes. Now, BBC reports that Russia and Norway have essentially agreed to split the Arctic's Barents Sea in half —one of the region's richest in biodiversity and ecological productivity—for industrial exploitation. Jeremy Hance tag:news.mongabay.com,2005:Article/7978 2011-06-06T17:36:00Z 2011-06-19T17:59:44Z Arctic on the line: oil industry versus Greenpeace at the top of the world <table align="left"><tr><td><img src="http://photos.mongabay.com/j/Sunny_Skies_over_the_Arctic_in_Late_June_2010.150.jpg" align="left"/></td></tr></table>At the top of the world sits a lone region of shifting sea ice, bare islands, and strange creatures. For most of human history the Arctic remained inaccessible to all but the hardiest of peoples, keeping it relatively pristine and untouched. But today, the Arctic is arguably changing faster than anywhere else on Earth due to global climate change. Greenhouse gases from society have heated up parts of the Arctic over the past half-century by 4-5 degrees Fahrenheit, leading to a staggering decline in the Arctic sea ice. The large-scale changes suffered by the Arctic have created a new debate over conservation and exploitation, a debate currently represented by the protests of Greenpeace against oil company Cairn Energy, both of whom have been interviewed by mongabay.com (see below). Jeremy Hance tag:news.mongabay.com,2005:Article/7796 2011-04-27T21:57:00Z 2011-05-09T17:51:17Z With pressure to drill, what should be saved in the Arctic? <table align="left"><tr><td><img src="http://photos.mongabay.com/j/super_ebsa_overview_v5.150.jpg" align="left"/></td></tr></table>Two major threats face the Arctic: the first is global climate change, which is warming the Arctic twice as fast the global average; the second is industrial expansion into untouched areas. The oil industry is exploring new areas in the Arctic, which they could not have reached before without anthropogenic climate change melting the region’s summer ice; but, of course, the Arctic wouldn't be warming without a hundred years of massive emissions from this very same industry, thus creating a positive feedback loop that is likely to wholly transform the Arctic. Jeremy Hance tag:news.mongabay.com,2005:Article/7634 2011-03-24T18:42:00Z 2011-03-24T18:44:08Z Arctic sea ice maximum ties for lowest on record Providing more data on how climate change is impacting the Arctic, the maximum extent of sea ice this year was tied with 2006 for the lowest on record. Maximum sea ice simply means the territory the sea ice covers at its greatest point before the seasonal melt begins. Jeremy Hance tag:news.mongabay.com,2005:Article/7573 2011-03-14T23:58:00Z 2011-03-16T17:19:19Z 15 conservation issues to watch <table align="left"><tr><td><img src="http://photos.mongabay.com/j/Aedes_aegypti_larva.150.jpg" align="left"/></td></tr></table>Deforestation, oil spills, coral acidification: these are just a few examples of ongoing, and well-researched, environmental changes that are imperiling the world's biodiversity. But what issues are on the horizon? At the end of 2010, experts outlined in <i>Trends in Ecology & Evolution</i> 15 issues that may impact conservation efforts this year and beyond, but are not yet widely known. These are issues you may never hear about it again or could dominate tomorrow's environmental headlines. "Our aim was to identify technological advances, environmental changes, novel ecological interactions and changes in society that could have substantial impacts on the conservation of biological diversity […] whether beneficial or detrimental," the authors write in the paper. Experts originally came up with 71 possible issues and then whittled it down to the 15 most important—and least known. Jeremy Hance tag:news.mongabay.com,2005:Article/7543 2011-03-08T22:41:00Z 2011-03-08T22:42:14Z Melting ice sheets largest contributor to rising sea levels Researchers expected the shrinking ice sheets of Antarctica and Greenland to eventually become the greatest contributor to the world's rising sea levels; they just didn't expect it to happen so quickly. A new study in <i>Geophysical Research Letters</i> has found that ice sheets have overtaken melting glaciers and ice caps. Jeremy Hance tag:news.mongabay.com,2005:Article/7534 2011-03-07T02:03:00Z 2011-03-07T02:08:04Z Birnam Wood in the 21st Century: northern forest invading Arctic tundra as world warms <table align="left"><tr><td><img src="http://photos.mongabay.com/j/aerial_041.thumb.jpg" align="left"/></td></tr></table>In Shakespeare's play <i>Macbeth</i> the forest of Birnam Wood fulfills a seemingly impossible prophecy by moving to surround the murderous king (the marching trees are helped, of course, by an army of axe-wielding camouflaged Scots). The Arctic tundra may soon feel much like the doomed Macbeth with an army of trees (and invading species) closing in. In a recent study, researchers found that climate change is likely to push the northern forests of the boreal into the Arctic tundra—a trend that is already being confirmed in Alaska. Jeremy Hance tag:news.mongabay.com,2005:Article/7409 2011-02-08T17:38:00Z 2011-02-08T17:39:40Z Another low record for Arctic ice in January The extent of ice cover in the Arctic for January was the lowest on record, following another record-low in December for that month, according to the National Snow and Ice Data Center (NSIDC). Jeremy Hance tag:news.mongabay.com,2005:Article/7406 2011-02-07T18:27:00Z 2011-02-07T18:39:18Z Arctic fish catch vastly underreported (by hundreds of thousands of metric tons) for 5 decades From 1950 to 2006 the United Nation Food and Agriculture Agency (FAO) estimated that 12,700 metric tons of fish were caught in the Arctic, giving the impression that the Arctic was a still-pristine ecosystem, remaining underexploited by the world's fisheries. However, a recent study by the University of British Colombia Fisheries Center and Department of Earth and Ocean Sciences throws cold water on this widespread belief. According to the study, published in <i>Polar Biology</i>, the total Arctic catch from 1950 to 2006 is likely to have been nearly a million metric tons, almost 75 times the FAO's official record. Jeremy Hance tag:news.mongabay.com,2005:Article/7332 2011-01-24T18:14:00Z 2011-01-24T18:17:35Z Greenland melt is the worst yet Melting of the Greenland ice sheet was the most extreme yet in 2010, beating the previous melt record from 2007. This continues a long-term trend whereby melting in Greenland has increased on average 17,000 square kilometers every year since 1979. Jeremy Hance tag:news.mongabay.com,2005:Article/7207 2010-12-22T04:16:00Z 2010-12-24T15:49:13Z Disappearance of arctic ice could create 'grolar bears', narlugas; trigger biodiversity loss The melting of the Artic Ocean may result in a loss of marine mammal biodiversity, reports a new study published in the journal <i>BNature</i> and conducted jointly by the National Oceanic and Atmospheric Association (NOAA), the University of Alaska, and the University of Massachusetts. The study is the first to project what might happen if species pushed into new habitats because of ice loss hybridize with one another, resulting in such crossbreeds as "narlugas" and "grolar bears". Morgan Erickson-Davis tag:news.mongabay.com,2005:Article/7185 2010-12-17T05:12:00Z 2010-12-17T05:17:36Z New hope for polar bears Once thought of as a doomed species, new research published in the journal <i>Nature</i> and conducted by scientists from several institutions, including the National Science Foundation and the U.S. Geological Survey, finds that polar bears could be saved from extinction - if certain measures are taken. Rhett Butler tag:news.mongabay.com,2005:Article/6518 2010-07-20T19:31:00Z 2010-07-20T19:32:21Z June was the 304th month in a row above average temperatures Data released from the US's National Oceanic and Atmospheric Administration (NOAA) and the National Climatic Data Center shows that June 2010 was a record breaker. It was the warmest month of June globally since record-taking began in 1880 and it is the 304th month in a row that has been above the 20th Century average. The last month to fall below the average was February 1985: the month Nelson Mandela, who recently celebrated his 92nd birthday, rejected an offer of freedom from the then apartheid government. Jeremy Hance tag:news.mongabay.com,2005:Article/6499 2010-07-14T16:00:00Z 2010-07-14T16:07:25Z Arctic ice hits lowest record for June In June the average sea ice extent in the Arctic was the lowest on record for that month, according to the National Snow and Ice Data Center (NSIDC). Measured by satellites, the seasonal movements of Arctic ice have been tracked since 1979 with a dramatic decline seen over the last 30 years. This decline is linked by climatologists to climate change. Jeremy Hance tag:news.mongabay.com,2005:Article/5991 2010-04-22T02:59:00Z 2011-06-16T17:01:55Z World failing on every environmental issue: an op-ed for Earth Day <table align="left"><tr><td><img src="http://photos.mongabay.com/j/madagascar_8006.thumbnail.jpg" align="left"/></td></tr></table>The biodiversity crisis, the climate crisis, the deforestation crisis: we are living in an age when environmental issues have moved from regional problems to global ones. A generation or two before ours and one might speak of saving the beauty of Northern California; conserving a single species—say the white rhino—from extinction; or preserving an ecological region like the Amazon. That was a different age. Today we speak of preserving world biodiversity, of saving the 'lungs of the planet', of mitigating <i>global</i> climate change. No longer are humans over-reaching in just one region, but we are overreaching the whole planet, stretching ecological systems to a breaking point. While we are aware of the issues that threaten the well-being of life on this planet, including our own, how are we progressing on solutions? Jeremy Hance tag:news.mongabay.com,2005:Article/5881 2010-03-28T17:57:00Z 2010-03-28T18:07:18Z 'Very dramatic' changes in Greenland: ice loss spreads north Over the past ten years scientists have measured increasing ice loss along southern Greenland. Now a new study in <i>Geophysical Research Letters</i> shows that the ice loss has spread north with likely consequences for global sea level rise. Jeremy Hance tag:news.mongabay.com,2005:Article/5835 2010-03-18T17:12:00Z 2010-03-20T14:36:58Z High Arctic species plummeting across the board, others Arctic residents on the rise <table align="left"><tr><td><img src="http://photos.mongabay.com/j/spectacled_eider_USFWS.thumb.jpg " align="left"/></td></tr></table>Between 1970 and 2004 species populations in the high Arctic have declined by 26 percent, according to the first report by the Arctic Species Trend Index (ASTI). While this may be a natural cycle, scientists are concerned that environmental impacts such as climate change are worsening natural population fluctuations in the high Arctic. Declining species include lemmings, red knot, and caribou. "Rapid changes to the Arctic’s ecosystems will have consequences for the Arctic that will be felt globally. The Arctic is host to abundant and diverse wildlife populations, many of which migrate annually from all regions of the globe. This region acts as a critical component in the Earth’s physical, chemical, and biological regulatory system," lead-author Louise McRae from the Zoological Society of London (ZSL) said in a press release. Jeremy Hance tag:news.mongabay.com,2005:Article/5784 2010-03-04T19:00:00Z 2010-03-06T13:02:22Z Massive methane leak in Arctic could trigger abrupt warming <table align="left"><tr><td><img src="http://photos.mongabay.com/j/shakhova6HR.thumb.jpg " align="left"/></td></tr></table>Methane, a greenhouse gas 30 times more potent than carbon, is spewing from what was believed to be an impermeable barrier in Siberia in amounts equal to methane releases from the world's oceans. The discovery has lead researchers to fear the possibility of abrupt climate warming. According to the study published in <i>Science</i>, subsea permafrost below the East Siberian Arctic Shelf has become compromised, leaking vast amounts of methane into the atmosphere. Jeremy Hance tag:news.mongabay.com,2005:Article/5750 2010-03-01T18:45:00Z 2010-03-01T19:40:28Z Polar bears are newcomers on the world stage <table align="left"><tr><td><img src="http://photos.mongabay.com/j/PolarBear150gov.jpg " align="left"/></td></tr></table>One of the most well-known animals, the polar bear, is a newcomer on the world stage, according to research published in the <i>Proceedings of the National Academy of Sciences</i>. By studying the DNA of an ancient polar bear jawbone uncovered in 2004 in Norway scientists have for the first time pinpointed the time when the polar bear split from its closest relative, the brown bear. "Our results confirm that the polar bear is an evolutionarily young species that split off from brown bears some 150,000 years ago and evolved extremely rapidly during the late Pleistocene, perhaps adapting to the opening of new habitats and food sources in response to climate changes just before the last interglacial period." Jeremy Hance tag:news.mongabay.com,2005:Article/5718 2010-02-24T18:52:00Z 2010-02-24T19:05:44Z Grizzly bears move into polar bear territory, threatening polar cubs <table align="left"><tr><td><img src="http://photos.mongabay.com/j/100223121439-large.jpg " align="left"/></td></tr></table>Two of the world's largest land carnivores are converging on the same territory, according to data recently published in <i>Canadian Field Naturalist</i>. Grizzly bears (<i> Ursus arctos horribilis</i>) are moving into an area that has long been considered prime polar bear habitat in Manitoba, Canada. Although polar bears (<i>Ursus maritimus</i>) are bigger than their grizzly relatives—they are the world's largest land carnivores—biologists are concerned that grizzlies will kill polar cubs, further threatening the polar bear, which is already thought to be imperiled by ice loss in the Arctic. Jeremy Hance tag:news.mongabay.com,2005:Article/5608 2010-02-03T17:06:00Z 2010-02-03T17:15:19Z NASA: Arctic melt season lengthening Newly released images from NASA and the National Snow and Ice Data Center show that the Arctic's melt season has lengthened significantly over the past few decades. Jeremy Hance tag:news.mongabay.com,2005:Article/5513 2010-01-24T17:50:00Z 2010-01-24T21:18:53Z NASA: 2009 second warmest year on record According to NASA's Goddard Institute for Space Studies (GISS), last year was tied for the second warmest year on record after 2005, the warmest year on record. If just looking at the southern hemisphere, however, 2009 proved the warmest yet recorded since record-taking began in 1880. Overall 2009 tied a total of five other years—four from the 2000s—for the second warmest on record. But, researchers say what is most important was that the past decade, from January 1st 2000 to December 31st 2009, proved the warmest on record. Jeremy Hance tag:news.mongabay.com,2005:Article/5317 2009-12-17T00:14:00Z 2009-12-17T00:39:25Z Catastrophic sea level rise could occur with only two degrees Celsius warming Allowing the climate to rise by just two degrees Celsius—the target most industrialized nations are currently discussing in Copenhagen—may still lead to a catastrophic sea level rise of six to nine meters, according to a new study in <i>Nature</i>. While this rise in sea levels would take hundreds of years to fully occur, inaction this century could lock the world into this fate. Jeremy Hance tag:news.mongabay.com,2005:Article/5290 2009-12-15T00:51:00Z 2010-04-16T21:37:37Z Climate change causing irreversible acidification in world's oceans <table align="left"><tr><td><img src="http://mongabay.com/images/nancy/thumbnails/au104.jpg" align="left"/></td></tr></table>A new study from the Secretariat of the Convention on Biological Diversity has synthesized over 300 reports on ocean acidification caused by climate change. The report finds that increasing acidification will lead to irreversible damage in the world's oceans, creating a less biodiverse marine environment. Released today the report determines that the threat to marine life by ocean acidification must be considered by policymakers at the UN Climate Change Conference in Copenhagen. Jeremy Hance tag:news.mongabay.com,2005:Article/5289 2009-12-14T20:06:00Z 2009-12-14T20:33:03Z Photos: ten beloved species threatened by global warming <table align="left"><tr><td><img src="http://photos.mongabay.com/j/clownfish__thumb.jpg " align="left"/></td></tr></table>The International Union for the Conservation of Nature (IUCN) has released a list of ten species that are likely to be among the hardest hit by climate change, including beloved species such as the leatherback sea turtle, the koala, the emperor penguin, the clownfish, and the beluga whale. The timing of the list coincides with the negotiations by world leaders at the UN Climate Change Conference to come up with an international agreement to combat climate change. Jeremy Hance tag:news.mongabay.com,2005:Article/5288 2009-12-14T18:11:00Z 2009-12-14T18:55:44Z Sea levels set to rise more than expected due to 'deeply surprising' Greenland melt A new study by the Arctic Monitoring and Assessment Program estimates that the sea will rise by 0.5 to 1.5 meters by 2100, threatening coastal cities and flooding island nations. This is double the predicted rise estimated by the UN's Intergovernmental Panel on climate Change (IPCC) in 2007, which did not incorporate sea level rise due to the melting of Greenland and Antarctica's ice sheets. Jeremy Hance tag:news.mongabay.com,2005:Article/5041 2009-10-19T19:04:00Z 2009-10-19T19:22:25Z Arctic lake undergoing unprecedented changes due to warming <table align="left"><tr><td><img src="http://i54.photobucket.com/albums/g94/troufs/17533-1.jpg" align="left"/></td></tr></table>The Arctic should be growing cooler, but a new sediment core taken from an Arctic lake reveals that the lake's ecology and chemistry has been transformed by unnatural warming beginning in the 1950s. The sediment core proves that changes happening in the lake during the Twentieth Century are unprecedented over the past 200,000 years. Headed by University of Colorado scientist Yarrow Axelford, the study retrieved the sediment core from the bottom of a thirty foot deep lake on Baffin Island. Importantly the sediment core goes back 80,000 years further than any other core retrieved from the Greenland ice sheet, providing researchers with the longest timescale yet of changes in the Arctic climate. Jeremy Hance