Dave, our climatologists are way short of definitive data as to the relative impact of modern global communities on climate change, versus the huge direct and indirect impacts of the forces of nature in this great universe in which our small sphere revolves.   Even the best of our global scientists, Nobel prizewinners or otherwise, are scratching the surface when it comes to understanding the universe and its climatological impacts.    Every day for these scientists leads to a new discovery of the realities and effects of that  universe.   The clear and substantiated evidence of the relative contribution of humans to the effects of climate change on our global sphere have not been proven by that scientific body, relative to the huge forces of nature coming from the sun, other spheres and the impact  forces of the universe.   Nothing is ever discussed or proven about those forces beyond our control.    The reality is that we fail to recognize that we do not control the climate switch.