This is definitely off topic but does deserve a response. Anthropogenic global warming is more than a theory. The real question, in my opinion, is how much of a perturbation on the longer term climatic trends has it caused and will it non-linearly send us into a regime that would not have existed otherwise. As such, it remains an area of active research. To deny that there is an impact goes against well established science.
Full disclosure: undergraduate and graduate degrees in Atmospheric Science and developer of numerical atmospheric models for NASA and the National Weather Service.
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Originally Posted by shumbapie
Man caused global warning is an unproven theory. The earth has warmed and cooled since the beginning of time, way before being occupied by human beings. If it's getting warmer or colder there could be a myriad of factors causing it. I know you did not specify that it was man caused global warming but if that is your implication, let's be clear, it's just a theory.
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