I'm not as big a tree-hugger as I sound, really. I mean, I am a tree-hugger, but I'm not a militant, evangelical, tree-hugger.

You're right, though, that focusing on one area won't solve it. It has to be a blanket effort. Of course, not being able to solve it all at once is no excuse to do nothing, but there needs to be an across-the-board effort.