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Post by moabiter on May 24, 2010 5:48:09 GMT -8
study: - methane University of Mexico, published in Nature, Mammoth's decline in human hunting ers ('Anthropocene epoch') As Mammoths Died Out, Earth ChilledAs massive grazing animals were killed off by early human hunters, methane levels dropped, contributing to a chilling planet. The 100-odd species of grass-eating giants that once crowded the North American landscape released huge quantities of methane -- from both ends of their digestive tracks. As a heat-trapping greenhouse gas, methane is 30 times more potent than carbon dioxide (CO2). It was not enough to trigger runaway global warming. But when all that gaseous output suddenly tapered off, it caused or at least contributed to a prolonged freeze known as the Younger Dryas cold event, they argue. news.discovery.com/animals/mammoths-megafauna-global-freeze.html___________________________________________ AS OPPOSED TO (OR IN CONJUNCTION WITH KABOOM METHANE EXPLOSION)?): Scientists say comet killed off mammoths, saber-toothed tigers (Jan 2, 2009) First an explosion as powerful as thousands of megatons of TNT rained meteorites down on North America. Then forest fires broke out across the continent, sending up a thick layer of soot and dust that blocked out the sun. A sudden ice age ensued, and some of the Earth's largest animals went extinct in a blink of geological time. www.physorg.com/news150097682.html
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Post by clone on Nov 4, 2010 23:24:51 GMT -8
Climate change catastrophe took just months November 15, 2009 Patterson found that temperatures had plummeted, with the lake’s plants and animals rapidly dying over just a few months. The subsequent mini-ice age lasted for 1,300 years. What caused such a dramatic event? The most likely trigger is the sudden emptying of Lake Agassiz, an inland sea that once covered a swathe of northern Canada. It is thought to have burst its banks, pouring freezing freshwater into the North Atlantic and Arctic oceans, disrupting the Gulf Stream, whose flows depend on variations in temperature and salinity. www.timesonline.co.uk/tol/news/science/earth-environment/article6917215.ece
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Post by clone on Dec 8, 2010 21:19:40 GMT -8
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Post by clone on Jan 1, 2011 11:14:46 GMT -8
Wooly Mammoth DNA Yields Surprising Secret Published December 15, 2009 | LiveScience The new view — that pockets of beasts survived to as recently as 7,600 years ago, rather than the previous end times mark of 12,000 years ago — is supported by DNA evidence found in a few pinches of dirt... The core samples revealed the local Alaskan fauna at the end of the last Ice Age. The oldest sediments, dated to about 11,000 years ago, contain remnant DNA of Arctic hare, bison, and moose; all three animals were also found in higher, more recent layers, as would be expected. But one core, deposited between 10,500 and 7,600 years ago, confirmed the presence of both mammoth and horse DNA. www.foxnews.com/scitech/2009/12/15/wooly-mammoth-dna-yields-surprising-secret
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Post by clone on Jan 1, 2011 11:29:34 GMT -8
See another thread: Harper defends marketing value of $1.9m fake lake www.pyrelog.proboards.com/index.cgi?board=pexology&action=display&thread=290&page=1OR THIS IN PARTICULAR - Ottawa’s media rules muzzling federal scientists, say observers September 12, 2010. The Harper government has tightened the muzzle on federal scientists, going so far as to control when and what they can say about floods at the end of the last ice age. Natural Resources Canada scientists were told this spring they need “pre-approval” from Minister Christian Paradis’ office [lol, the bricklayers and access to information squash scandal] to speak with national and international journalists. Their “media lines” also need ministerial approval, say documents obtained by Postmedia News through access-to-information legislation. www.calgaryherald.com/entertainment/Ottawa+media+rules+muzzling+federal+scientists+observers/3513960/story.html What I don't get is why that's in the Entertainment section. Maybe Friends of Oil Science is calling the shots on what people can say about geology or natural history or floods.
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Post by public fund on Mar 11, 2013 8:30:12 GMT -8
Scientific freedom in Canada: Keep it to yourselves Mar 7th 2013, 1:48 by M.D. | OTTAWA At issue is the wording of a contract for a proposed collaboration in the Arctic between America’s University of Delaware and the Canadian department of fisheries and oceans. Whereas a contract for a previous effort stipulated that project-related information shall be freely available to all Parties to this Agreement and may be used, disseminated or published by any Party, at any time, the new agreement says that any technology, data or other information of any kind related or arising from the Project...shall be deemed confidential and neither Party may release any such Information to others in any way whatsoever without the prior written authorisation of the other Party.... comical excesses in communication control, such as preventing a scientist from talking to journalists about his work on a flood 13,000 years ago without approval from a minister, or ordering a researcher not to attend the launch of his own novel because it dealt with climate change. www.economist.com/blogs/americasview/2013/03/scientific-freedom-canadaAndreas Muenchow blog: icyseas.org/2013/02/07/academic-freedom-and-international-collaborations/
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