Tonight, I logged onto TerraPass and purchased offsets for my car and my wife's car. I was inspired by a messageboard discussion and decided that talk was cheap. In the end, so was reducing my net carbon footprint by buying carbon offsets from folks like TerraPass.
I like to think that I'm actually doing something -- anything -- to help. And I really like the fact that what I'm doing is based on the market, not some government mandate. Anyway, maybe you'll think about it, too.