How much global warming is too much?

From ScienceBlogs’ The Island of Doubt: are we safe with 2 degrees of warming?

The short answer is “nobody knows,” of course. The ice core records suggest that we’re adding CO2 to the atmosphere faster than the planet has ever seen before. That doesn’t necessarily mean that the consequences of doing so — planetary warming and extreme drought in dry areas, for example — will be felt soon, or at all. But in the past, such consequences sooner or later come about. And it would be foolish to operate on the assumption that the Earth has some of kind of hitherto undiscovered compensatory mechanism that spares us from them.

Which is why politicians would prefer climatologists tell them just what kind of warming civilization can handle and what we can’t.

Hi! I’m not really here right now. I’m on vacation in Australia. Through the magic of scheduled blogging, I’ve set a little something I find interesting to be posted each day I’m gone.