Amen to that, Ross. I seem to recall, from my science classes in school, that our planet was once much colder. Ice ages and all that. So basically the planet has been warming itself up for a long time. Granted, us humans aren't exactly being good stewards of our home, but I agree that the human effects on global warming are small, compared to what Ma Nature herself is doing.
Now, we must never speak of this again, or the Greenies will be all over us...