CO2 levels: during the Carboniferous Period “atmospheric concentrations of carbon dioxide (CO2) in the Early Carboniferous Period were approximately 1500 ppm (parts per million), but by the Middle Carboniferous had declined to about 350 ppm — comparable to average CO2 concentrations today!”

Liberals like Al Gore have warned of rising CO2 levels destroying the planet, and they’re only talking about a few percentage points…not 4x what we have today.

So, how is it the Earth handled 1550ppm then…but can’t handle 450ppm today?