WE'RE ALL DOOMED!
The History of CO2 concentration in the atmosphere should help the debate but you never hear anything about it.
In the early earth, greenhouse gases, CO2 and methane, made up 80% of the atmosphere.
By the time of the dinosaurs, C02 had fallen to 3% and methane was absorbed into the earth. Oxygen had risen from 0 to about 15% concentration.
At the peak of the last ice age, C02 had fallen to just 0.15% whereas today it about 0.38% (which itself is up from 0.26% about 50 years ago.)
So a measely 0.12 percentage point rise is what we are talking about which might become another 0.12 points in another 50 years. CO2 is just 3 parts per thousand in the atmosphere.
During the time of the dinosaurs it was 10 times higher than it every will be with humans adding CO2 to atmosphere.
Did the dinosaurs die from the additional heat. Nah, it was just comfortably warmer than it is today. Something like the African savanna that we evolved on. What is the problem?