Cloud cover controls temperature, not CO2! Now the scientists with a clue are starting to speak up. Anyone who has been in a desert knows the minute the sun goes down, it gets cold – the reason is there is little moisture in the air to hold the heat, and lack of clouds allows the heat to quickly radiate back into space…
The atmosphere on Mars is almost all CO2, and while thin, the CO2 amount per surface area is similar, yet Mars is a cold planet with no “greenhouse effect” – because of the lack of water vapor (and the planet is not big enough to sustain a gravitational force to maintain a hot molten core)
