tlc... I read a lot. But even if I didn't common sense would tell you global warming being caused by man is a hoax. Greenhouse gases are made up of water vapor, co2, methane, n2o, and misc. gases. Water vapor constitutes 95% of all greenhouse gases. Co2 about 3.6%. And most is naturally occuring. About 0.28% of greenhouse gases are caused by human activity and about 0.11% is co2. Pretty insignificent. It seems to me that water vapor might have a greater impact than co2 and since 94.999% is naturally occuring there isn't much man can do about it.