Someone correct me if I'm wrong, but if there is more carbon dioxide in the atmosphere, plants will grow faster so tree rings will be bigger. So even in declining temperature environments, tree rings will be greater than in periods where carbon dioxide is minimized.
I would think that evidence of larger tree rings regardless of the climate would be a good thing. IOW higher levels of Carbon Dioxide is GOOD FOR THE ENVIRONMENT.
You are correct.
IMO, the global warming folks have failed to substantiate three vital claims:
1. global warming is actually occurring.
2. If it actually is occurring, that it is manmade, and can be affected by human endeavors.
3. That is would be harmful. If it is occurring, and it is caused by higher levels of CO2, then there will be large tracts of tundra that will become arable land, and the greater concentrations of CO2 would make for more luch plantlife, which will produce more oxygen, and use CO2, offsetting any warming.
I know, they say it’s more complicated than that, but what could be a greater oversimplification than that there is global warming.