re: #80 FemNaziBitch

I thought it had to with distance from Sol.

Nope, it’s the greenhouse effect.

Distance from Sun (A.U.) Venus 0.72 Earth1 Mars1.52
Flux, W/m2 Venus 2643 Earth 1370 Mars593
Albedo Venus 0.8 Earth 0.3 Mars 0.22
Effective Temperature, K Venus 220 Earth 255 Mars 212
Actual observed Temperature, K Venus 730 Earth 288 Mars218
Greenhouse Effect, K Venus 510 Earth 33 Mars5

Venus is hit with approximately twice the solar irradiance, but it reflects 80% of what hits it, vs. the Earth which only reflects 30%. That’s why everything else being equal Venus should actually be colder than Earth. However the greenhouse effect is much greater, because of the massively greater concentration of CO2 and because of the much greater atmospheric pressure (90 ATM at the surface) which magnifies this further through the ideal gas law (PV=nRT).