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Neb, I think it is pretty easy to prove that global warming is happening, the temperature average has incresed a degree or two in the last thousand years, my only point is, that there is no conclusive evidence that man can influence it one way or the other.
If it were possible then people in siberia and Alaska would be pumping out as much CO2 as they could to warm their places up...but it doesn't work that way.
Ice core samples from antarctica, the arctic and greenland show no correlation between global temperatures and the CO2 content of the atmosphere. The earths temperature has been much much higher in the past than it is now, and we are just now coming out of a rather extended interglacial period. Humans just have no real ability to predict what is happening since we have no idea what happened just prior to the last ice age. We don't know the whys or the HOWS to the entire geological cycle. All we have is observations from an insignificant portion of the earths global climate.
The good news is, the "ozone hole" is closing and will be completely gone in less than 50 years.
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