The IPCC Fourth Assessment Report (AR4) summary rundown: human-caused climate change is very likely to be already detectable; the world is very likely warmer than any time in the last 1300 years; the world will warm by 1.8–6.4 degrees C this century, and sea will rise between half a foot and two feet, not counting any of the sorts of effects mentioned here last month
… and more at wikipedia
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