Runaway Global Warming 635 Million Years Ago (LiveScience.com via Yahoo! News)
Wednesday 28 May 2008
A sudden and extreme case of runaway global warming 635 million years ago was caused by an abrupt release of methane, a powerful greenhouse gas, scientists said today.
See online : http://us.rd.yahoo.com/dailynews/rss/search/global+warming/SIG=136f24tiq/*http%3A//news.yahoo.com/s/livescience/20080528/sc_livescience/runawayglobalwarming635millionyearsago