News articles tagged with 'permafrost'
Thawing permafrost likely will accelerate global warming
— 17 Feb 2011 18:12 | EnvironmentUp to two-thirds of Earth's permafrost likely will disappear by 2200 as a result of warming temperatures, unleashing vast quantities of carbon into the atmosphere, says a new study…
Scientists find evidence for widespread water ice on the moon
— 23 Oct 2010 17:53 | AstronomyScientists from NASA's Diviner Lunar Radiometer Experiment team have detected the widespread presence of water ice in large areas of the moon's south pole…
Study finds permafrost warming, monitoring improving
— 4 Aug 2010 10:25 | EnvironmentPermafrost warming continues throughout a wide swath of the Northern Hemisphere, according to a team of scientists assembled during the recent International Polar Year…
Climate change scientists turn up the heat in Alaska
— 26 Jun 2010 12:58 | EnvironmentScientists at the Department of Energy's Oak Ridge National Laboratory are planning a large-scale, long-term ecosystem experiment to test the effects of global warming on the icy layers…
Stream water study detects thawing permafrost
— 6 May 2010 13:23 | EnvironmentAmong the worrisome environmental effects of global warming is the thawing of Arctic permafrost - soil that normally remains at or below the freezing point for at least a two-year period…
Study: Arctic seabed methane stores destabilising, venting
— 19 Mar 2010 13:09 | EnvironmentA section of the Arctic Ocean seafloor that holds vast stores of frozen methane is showing signs of instability and widespread venting of the powerful greenhouse gas, according to the…
Methane releases from Arctic shelf may be much larger and faster than anticipated
— 16 Mar 2010 02:20 | EnvironmentA section of the Arctic Ocean seafloor that holds vast stores of frozen methane is showing signs of instability and widespread venting of the powerful greenhouse gas, according to the…
Late-surviving megafauna exposed by ancient DNA in frozen soil
— 16 Dec 2009 10:11 | Geology and palaeontologyExtinct woolly mammoths and ancient American horses may have been grazing the North American steppe for several thousand years longer than previously thought. After plucking ancient…
Ancient DNA, not fossilised bones, shows late survival of Ice Age megafauna
— 15 Dec 2009 12:32 | Geology and palaeontologyUniversity of Alberta researchers are part of an international team that has used DNA samples from frozen dirt, not fossilised bones, to revise the history of North America's woolly…
Arctic now traps 25 percent of world's carbon - but that could change
— 16 Oct 2009 09:25 | EnvironmentThe arctic could potentially alter the Earth's climate by becoming a possible source of global atmospheric carbon dioxide. The arctic now traps or absorbs up to 25 percent of this gas…