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Home > News > Tags > permafrost
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Stories about: permafrost |
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Permafrost is known as one of the most important sources of methane and carbon dioxide on the planet. The dangerous greenhouse gases are locked inside the frosty soils, but global warming can easily bring them out. A new study now looks at how permafrost thaws in its most sensible sectors.
For the investigation, th... |
24 January 2012
04:38 GMT |
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Scientists say that under-assessment of the risks involved in thawing of perennially-frozen soils called permafrost has led to a distorted view of the amount of methane they could release in the atmosphere. These quantities have largely been underestimated, the team behind the new study believes.
In a paper publishe... |
5 December 2011
02:50 GMT |
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A collaboration of researchers in the United States recently carried out a new study on how microbes in permanently-frozen soils, called permafrost, react to a warming world. This is important because permafrost retains vast amounts of greenhouse gases.
Spanning from the North Pole to the Arctic Ocean, these soils ... |
9 November 2011
06:08 GMT |
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One of the most severe effects of global warming, and the climate change it produces, is the thawing of permafrost, the perennial-frozen soils located in Arctic regions. These lands contain vast amounts of greenhouse gases, which could be released in the atmosphere by the end of this century.Calculations show that bi... |
23 August 2011
04:47 GMT |
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Over the past few years, methane levels around the world have began growing, and researchers are currently scrambling to make sense of why. They are also looking to determine the most potent sources for this dangerous greenhouse gas. One of the most likely candidates is permafrost.While carbon dioxide (CO2) steals th... |
2 March 2011
05:05 GMT |
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A group of investigators has just concluded a new series of tests in the Antarctica, whose objective was to analyze the functionality of the new IceBreaker rotary-percussive drill. The instrument is destined for Mars, where it needs to be able to dig at least 1 meter below the permafrost. In order to simulate the har... |
17 December 2010
09:26 GMT |
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In late November, a team of NASA experts will head to the Dry Valleys region of Antarctica, which is a place where conditions resemble those of certain areas on the Red Planet. The research is being conducted in anticipation of a return mission to Mars. The University Valley was selected as the best place to test the... |
18 November 2010
09:06 GMT |
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According to an international group of experts, it would appear that one of the most important sections of the Arctic Ocean seafloor is becoming unstable. This is extremely dangerous, because this particular location holds vast amounts of the powerful greenhouse gas methane, which it recently began venting out. Meth... |
5 March 2010
03:05 GMT |
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The Laptev Sea North of Siberia is one of the regions where many rivers passing through the inhospitable land mass spill into the Arctic Ocean. One of the largest such waters, known as Lena, is one of the ten largest rivers in the world, and features an extensive drainage basin and length. As it flows to the sea, the... |
11 January 2010
09:28 GMT |
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For quite some time now, researchers have known that the vast amounts of carbon dioxide that are stored in the Arctic permafrost (frozen soils, river deltas and other sediments) will in the future play a significant part in the warming of the planet, but they never had a clear idea of just what extent this influence ... |
6 July 2009
09:52 GMT |
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The first half of the Qingzang railway, connecting mainland China to the Tibet Autonomous Region, was opened in 1984, when authorities inaugurated an 815-kilometer-long section of tracks, stretching from Xining to Golmud. The entire “iron road” was completed in 2006, when an additional 1142 kilometers wer... |
6 May 2009
09:17 GMT |
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Researchers collecting soil samples from several sites in Alaska discovered that a layer of permafrost, buried at a depth of about one meter (3 feet), is mostly made up of organic remains that have great carbon-emitting potential. Professor Chien-Lu Ping, leader of this study, said that this layer could represent a s... |
9 October 2008
08:50 GMT |
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A trip into the Siberian tundra will remind you now of a visit at a cow farm. Because of the scent. But what you smell is not cow dung, but mammoth one: this is the syrupy mud, resulted from the thawing of the permafrost. Just another symptom of global warming: the prehistoric dung lifted from suspended animation. An... |
20 September 2007
04:48 GMT |
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Thousands of years following their extinction, mammoths still help people earn a living. In the Siberian tundra, the frozen grassland high up in the Arctic Circle, the climbing temperature is thawing out the permafrost (the frozen soil) to show off the fossilized bones of prehistoric megafauna like mammoths, woolly r... |
19 September 2007
06:39 GMT |
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