You know what the dinosaurs never worried about for literally hundreds of millions of years? Freezing to death. Want to know why? CO2 was definitely higher in the atmosphere. The planet was tropical. The corpses of those living things died, locking away the carbon in large deposits. Why the fuck would releasing that CO2 be bad, or worse than approaching an ice age of any sort again? I can tell thermodynamics aren't taught in schools anymore. Geezus, I can't even imagine what common core thermodynamics looks like.