posted on Jul, 18 2007 @ 07:54 AM
The key, as I see it, to terraforming Mars is in genetic manipulation of plant life in order for it to be able to survive on the planets surface, as
it stands right now, and produce oxygen.
There are various lichens/mosses that live on this planet in extreme conditions that are probably very well suited for adaptation.
The idea of a planet sized magnetic shield is a difficult one, and not something I think is possible, however a localised shield might very well be -
something akin to a large spinning electromagnet in the middle of what you could probably describe as a classic sci-fi style dome structure might
provide enough to allow enough protection for a small colony.
So, pick an area. Seed it with lichen, leave it for a number of years to grow, then send in a robotic probe with the magnetic generator, start it
working and then send a team in to construct your dome.
Repeat as necessary. Continue seeding externally. Start small, and eventually you'll get big.