Sallies it would be nice if we had some scientific evidence, on par, with DNA testing, to enlighten the Global Warming controversy.  As it is now, it seems that it is an issue, which plays on peoples uncertainties, more than offering absolute science.

    Arvin given the violent weather history that the planet earth has gone through, over the thousands, and ten of thousands of years, it is a little specious, to think, man has a large part in effecting the earth's weather; I'm sure we have some effect, for it said, "Even a butterfly flapping its wings has an effect...."  Still, one large volcanic eruption likely causes more of effect, than man could ever ... since time dissipates our effects.