Sand wrote:
Considering the melting of ice at the poles, the statistics on the huge increase in CO2, the warming of the oceans and their acidification which is slaughtering huge areas of sea life, the subsequent increase in the occurrence and violence of hurricanes and many other factors including the general consensus of the scientific community, denial of the human contribution to global warming is located somewhat in the perceptual area as a flat Earth.
Volcanoes put more SO2 and H2SO4 into the air than humans. That is the main source of acid rain. Volcanoes have been polluting the air since god invented dirt.
ruveyn