Arctic Sediments Show That 20th Century Warming Is Unlike Natural Variation

Very interesting article here. Can't say I didn't see this coming.

http://www.sciencedaily.com/releases/2009/10/091023163513.htm

ScienceDaily (Oct. 25, 2009) — The possibility that climate change might simply be a natural variation like others that have occurred throughout geologic time is dimming, according to evidence in a Proceedings of the National Academy of Sciences paper published October 19.