It's not perfect, but it's something: A new study from researchers at the University of Alberta says that Arctic permafrost may be less vulnerable to global warming than previously thought. The study, which will be published tomorrow in the journal Science, found that a permafrost ice wedge in Canada's Yukon Territory is more than 700,000 years old, meaning that it withstood two previous cycles...
| Wed Sep. 17, 2008 12:00 AM GMT
| Thu Jul. 24, 2008 11:41 AM GMT