Global warming-fact or fiction and how do you propose we tackle it?

[Kasz216]

So if CO2 is 12% of the problem, and man made CO2 is about 3% of CO2.

Wouldn't that make Global warming due to man made CO2, '
0.36%. As in less then 1%?

Unless the numbers without water vapor are incorrect.

(actually thinks global warming is man made but applying scientific process.)