Originally posted by joneschr
Disclaimer: Although I'm not close to certain, I do think that AGW probably is real and probably is a problem that's worth dealing with.
By the way, what happened to the conservative position that global warming does exist - it just isn't created by humans? Just because we had a cool year (in the US only mind you) we're going to back off on that position?
But, to play Devil's advocate for a moment:
Those 2 positions (global warming is real, but not anthropogenic; and the warming has stopped) are entirely consistent with each other. The entire line would go:
- Yes, there is a warming trend over the last 30 years and maybe even a general warming trend over the last 200
- But that's because there are natural cycles in global temperatures. Now we're in a bit of a warming cycle; but even within the cycle, there have been smaller eras of cooling and warming.
- The fact that the trend has leveled off recently; either in the last 12 years or the last 2 or 3, depending on your frame of reference, while CO2 emissions have increased, is an indication that CO2 emissions are not very strongly correlated to global warming and that the cooling and warming are natural cycles.