[jonathan]

My pessimistic side causes me to relunctantly agree. The easiest thing to do for reducing co2 levels would be shutting down coal plants and using nuclear, but I doubt we'll do that in time. The real ticking bomb isn't melting ice exposing more dark surfaces, but rather methane hydrate deposits. As the ocean temperature increases, these methane hydrate desposits will begin to erupt adding ever more greenhouse gasses to the atmosphere. At the same time you also have the permafrost melting, turning frozen tundra into vast swamps that emit tons of co2 as they decay.

I think enviromentalists and scientists should consider what would be the best plan IF global warming continues. It may be a very very long time before antarctica becomes desireable for habitation, however it would also be an opportunity to keep at least 1 continent free of industrial development.