many lines of evidence, including simple accounting, demonstrate beyond a shadow of a doubt that the increase in atmospheric co2 is due to human fossil fuel burning.
many lines of evidence, including simple accounting, demonstrate beyond a shadow of a doubt that the increase in atmospheric co2 is due to human fossil fuel burning.
carbon dioxide in earth's atmosphere:140
while co 2 absorption and release is always happening as a result of natural processes, the recent rise in co 2 levels in the atmosphere is known to be mainly due to human (anthropogenic) activity.