A Bet for Climate Skeptics:

Nate Silver of FiveThirtyEight is offering a bet to those who do not believe human activity is contributing to a gradual warming of the atmosphere. [Hat tip: Legal Planet] Given that quite a few climate skeptics frequent this site — and tend to turn the comment thread following every climate-related policy post into a debate on the existence of global climate change — I figured at least one would take his bet.

UPDATE: Tom Maguire has interesting responses here and here.