Here's another way of looking at things: Global warming is good. And if there's any bad news at all about global warming, it's that it might be about over. The debate about global warming will go on forever. But while we may spend the rest of eternity trying to figure out where our weather is headed, one of the best ways of finding out where we're going is to simply look at where we came from. Some years ago I stumbled onto Charles Perry, with the U.S. Geological Survey in Lawrence, when I was trying to track down some information...