Wait a minute!
Mars’ atmosphere is 95% carbon dioxide? How can it be cold there?
All we need to do is plant a billion evergreen trees to produce oxygen and the planet would be livable right?
I guess..
I read a book back in the 80’s that proposed something like that. Use all the Soviet SS-20’s to bombard Mars with fast growing algae IIRC.
http://www.amazon.com/Greening-Mars-Michael-Allaby-Lovelock/dp/0446329673
We could rocket the Congress there and warm the place up with hot air.