Arctic at warmest levels in 2,000 years or more
Thursday, September 3, 2009 - 19:14
in Earth & Climate
BOULDER--Arctic temperatures in the 1990s reached their warmest level of any decade in at least 2,000 years, new research indicates. The study, which incorporates geologic records and computer simulations, provides new evidence that the Arctic would be cooling if not for greenhouse gas emissions that are overpowering natural climate patterns.