How We Know It Was Us

The notion that the measured, rapid CO₂ buildup came from something other that man’s is absurd. We know how much fossil fuel we, as a species, burned each year. We know to at least three decimal places how much CO₂ each kilogram of gasoline, natural gas, coal etc. is produced on burning. So we also know quite accurately how much CO₂ mankind has created with fossil fuel burning over the last hundred years.

~ Roedy (1948-02-04 age:70)