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Latest Clathrate gun hypothesis Stories

Global Warming Not Primary Cause Of Svalbard-Area Methane Release
2014-01-03 07:47:38

redOrbit Staff & Wire Reports - Your Universe Online Natural processes, not global warming, are primarily to blame for the dissolution of the fragile, ice-like solid fuel substances known as methane hydrates, according to new research published online Thursday in the journal Science. Methane hydrates, which are composed of water and methane, are only stable in high pressure and low temperature conditions, the study authors explained. In some areas, such as in the North Atlantic off...

No Clear Sign That Less Soot, Methane Reduces Global Warming
2013-08-14 08:20:43

redOrbit Staff & Wire Reports - Your Universe Online Reducing emissions of only soot and methane won't do as much to reduce global warming as some previous research has suggested, according to a new study published Monday in the Proceedings of the National Academy of Sciences (PNAS). "Cutting back only on soot and methane emissions will help the climate, but not as much as previously thought," said study author Steve Smith, a climate researcher at the Department of Energy's Pacific...

Methane Reservoir Beneath Antarctic Ice Sheet
2012-08-30 08:32:12

April Flowers for redOrbit.com - Your Universe Online A recent study of the Antarctic Ice Sheet suggests that it could be a largely overlooked source of the potent greenhouse gas methane. An international team of scientists from the University of Bristol, the University of California, Santa Cruz, the University of Alberta, Edmonton, and the University of Utrecht, demonstrate that old organic matter in sedimentary basins located beneath the Antarctic Ice Sheet may have been converted to...

Image 1 - Methane Could Be The Answer To 56-million-year Question
2011-11-09 12:32:20

Rice researchers show ocean could have contained enough methane to cause drastic climate change The release of massive amounts of carbon from methane hydrate frozen under the seafloor 56 million years ago has been linked to the greatest change in global climate since a dinosaur-killing asteroid presumably hit Earth 9 million years earlier. New calculations by researchers at Rice University show that this long-controversial scenario is quite possible. Nobody knows for sure what started...

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2011-07-22 06:20:00

The release of a huge amount of methane gas may have caused a massive, prehistoric extinction that gave way to the arrival of dinosaurs as the dominant life form on earth, according to a new study. Micha Ruhl and his team of researchers from the Nordic Center for Earth Evolution at the University of Copenhagen in Denmark suggest that the mass extinction of half of Earth's marine life over 200 million years ago was a result of a huge release of carbon methane into the atmosphere, which led to...

2010-06-25 14:58:06

No clathrate gun 40,000 years ago rapid warming led to an increase in methane concentration. The culprit for this increase has now been identified. Mainly wetlands in high northern latitudes caused the methane increase, as discovered by a research team from the University of Bern and the German Alfred Wegener Institute for Polar and Marine Research in the Helmholtz Association. This result refutes an alternative theory discussed amongst experts, the so-called "clathrate gun hypothesis". The...

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2010-03-05 09:30:00

Thawing by climate change of subsea layer of permafrost may release stores of underlying, seabed methane A 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 findings of an international research team led by University of Alaska Fairbanks scientists Natalia Shakhova and Igor Semiletov. The research results, published in the March 5 edition of the journal Science,...

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2009-11-21 09:16:44

Scientists from the Marine Biogeochemistry and Geology and Geophysics sections of the Naval Research Laboratory (NRL) organized and led a team of university and government scientists on an Arctic expedition to initiate methane hydrate exploration in the Beaufort Sea and determine the spatial variation of sediment contribution to Arctic climate change. Utilizing the U.S. Coast Guard Cutter Polar Sea as a research platform, three cross-shelf transects were surveyed and sampled off Alaska's...

2009-09-02 14:01:45

Scientists worry that rising global temperatures accompanied by melting permafrost in arctic regions will initiate the release of underground methane into the atmosphere. Once released, that methane gas would speed up global warming by trapping the Earth's heat radiation about 20 times more efficiently than does the better-known greenhouse gas, carbon dioxide. An MIT paper appearing in the Journal of Geophysical Research online Aug. 29 elucidates how this underground methane in frozen regions...

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2009-08-19 07:15:00

A research team is claiming to have evidence that shows methane is escaping from the Arctic sea bed. The team, which conducted research from the sea bed off Norway, found more than 250 plumes of methane bubbles rising from the sea floor. As temperatures in the region rise, the sea bed grows warmer, allowing frozen water crystals to break down and release methane. According to the team's report, which appears in Geophysical Research Letters, detected the bubbles using sonar and tested for...


Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'