Now hang on a min, I agree that a large amount of all this green stuff is total crap but........ If we produce CO2, the main thing that absorbs it is Trees, and if we keep destroying them to make "use once then burn" wood, it ain't goin' to keep working for long. Next I feel its not CO2 but C that is a major problem. I got asthma about 15years ago, while living in Leicester. However since moving up to yorkshire it has got better. A possible reason is leicestershire is in a hollow, so air polution tends to stay there, whereas up in yorkshire we are higher, so wind blows any crap away, so less agrovation to lungs etc. So air polution is a problem. You might not see it, but its there, and getting worse.
There is a limit as to much crap we can keep pumping into the environment, before it looses its ability to correct. They do say that there a lot of frozen methane under the pole, once that starts to melt, the control mechanism that is keeping balance will flip, and we will not be able to reverse the change, so the atmosphere will be changed for good.
There is a limit as to much crap and poison we can keep dumping onto the Earth, before She gives up.
Ken