Here's what humans have, "collective control" over:this seems somehow more fitting for them given their official opposition to taking responsible action to reduce, delay, or reverse those elements of global warming which are subject to our collective control.
The approximate numbers.
There is 0.04% CO2 in the Earth's Atmosphere and of that "Man" has added an extra 4%(1 part in 62,500)
4% of (0.04%)= not a lot when considering how many trillions it would cost to mitigate for zero benefit.
Humans need to move away from fossil fuels, but not because the human input of CO2 is overheating the planet, it isn't.