Well, maybe (http://www.bbc.co.uk/news/science-environment-11137903). Great read, if a bit sparing on the details. How applicable is this to what they're talking about (colonization of Mars)?

Neat. doubt it has much to do with martian terraforming as lichens will be the key there and trees will come much much later.

Pssh this is soooo 1990, I terraformed Mars years ago... on SimEarth

LOL, did you use mo-holes? or sub crustal nuclear detonations? i'm partial to a magnifacation solar array my self.

I Went with the whack a couple ice comets into it, then some volcanic eruptions to warm it up method