In an interview on NPR, the skeptical environmentalist Bjorn Lomborg
said that the polar bears need never become extinct because we could "feed them" should they ever actually began to die out from starvation.
To do so, in his estimation, would be far more cost effective than bankrupting developed nations and redistributing vast amounts of monies to developing nations, who will do God knows what with it all.
He thinks that we should concentrate on helping developing nations develop infrastructure that will help them weather natural disasters and the like so that global warming will not really affect them all that much.
I agree with him.