I watched a NASA segment on Mars last night and they said that a great deal of the Martian atmosphere is made up of CO2. That is why Mars is not able to warm up. Which is it? CO2 makes it hotter, or CO2 makes it cooler? In the 70's the ecos's swore we were entering a new ice age. Which is it?
But Mars IS warming. I guess that little battery-powered SUV we sent up there was too much for its climate to handle.
Whichever one will cause the most panic in the sheeple.