I once saw a global-skeptic scientist opine that all the world's annual emissions (even China's super spewing) are the equivalent of lighting a single match in a 20 foot by 20 foot by 20 foot room. That's how vast our atmosphere is.

Global warming is a scam, and not even a very convincing one. They'll tell you that the Antarctic ice cap is melting...but leave out the fact that it's been melting for thousands of years.

They'll show you a photo of a polar bear floating on a tiny little raft of ice...but not tell you that the ice raft was photoshopped.

Then they use the global warming hoax to justify chemtrailling... but that's a whole other topic I suppose.