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Post by moabiter on May 24, 2010 11:29:41 GMT -8
30 Oct 2008: Report Melting Arctic Ocean Raises Threat of ‘Methane Time Bomb’ Scientists have long believed that thawing permafrost in Arctic soils could release huge amounts of methane, a potent greenhouse gas. Now they are watching with increasing concern as methane begins to bubble up from the bottom of the fast-melting Arctic Ocean.BY SUSAN Q. STRANAHAN These “methane chimneys” sometimes contained concentrations of the gas 100 times higher than background levels and were so large that clouds of gas bubbles were detected "rising up through the water column," Orjan Gustafsson of the Department of Applied Environmental Science at Stockholm University and the co-leader of the expedition, said in an interview. There was no doubt, he said, that the methane was coming from sub-sea permafrost, indicating that the sea bottom might be melting and freeing up this potent greenhouse gas. e360.yale.edu/content/feature.msp?id=2081ABOUT THE AUTHOR Susan Q. Stranahan is an award-winning journalist who has written about the environment and energy for more than three decades. She was a staff writer for the Philadelphia Inquirer from 1972 to 2000, is the author of “Susquehanna, River of Dreams,” and has written for numerous publications, including the Los Angeles Times, Washington Post, Fortune, Time, and Rolling Stone. She lives on Chebeague Island, Maine.
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Post by moabiter on Jan 8, 2011 14:22:39 GMT -8
Permian History Methane Gas Explosion From Ocean Wiped Out 95% Of Life 6/02/2010 - "Major theory is that oceans can and have produced methane gas, and was responsible for the Permian Mass Extinction. This explosion killed up to 95% of life on earth during that period. A seafloor basin of methane saturated water may have a breaking point. An earthquake, underwater landslide, or even an meteor impact could have triggered this, and suddenly, like shaking a giant soda bottle, the deepest part of the ocean would have exploded in a deadly storm of methane bubbles." www.youtube.com/watch?v=KbnM1QpuwWIThere's an interesting comment on this video, like the birds: And when that methane ignites it will send an overpressure-wave around the world that will crush the internal-organs of the human-race See thread: Birds Dropping Out Of The Sky www.pyrelog.proboards.com/index.cgi?board=earth&action=display&thread=412
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Post by moabiter on Jan 8, 2011 14:33:05 GMT -8
The Storegga Landslides: Catastrophic Underwater Natural Methane Explosions Biot Report #301: November 26, 2005 The complex consists of three very large underwater landslides known to have taken place during the last 100,000 years. The landslides departed from the destabilized slope and “flowed” into the deep ocean crevasses below. The Second Storegga Slide was large enough to have caused a megatsunami around 7,100 years ago that triggered widespread coastal flooding in Scotland, Norway and other coastlines bordering the eastern North Atlantic and North Sea. (4) For example, at a number of localities near the eastern coast of Scotland is a sand deposit as deep as 25 feet above sea level that has been dated to about 7,000 years ago. One researcher in 1989 proposed that this sand is a megatsunami deposit resulting from the sediment displacement associated with the Second Storegga Slide. (5) www.semp.us/publications/biot_reader.php?BiotID=301
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