Atlanta Journal-Constitution: The climate is changing; it is changing more quickly than at any time in the climatological record. And we are the only plausible cause of such a rapid change. There is no other suspect. We also know that every life form on this planet evolved to thrive in this current climate. Yes, a lot of species would survive in a climate that averaged 15 degrees warmer than this one, or even 30 degrees warmer, just as many would survive in a climate that averaged 30 degrees cooler. It is also true that either...