Maybe there is hope to avoid extinction and for things to improve. I can't predict the future any better than anyone else. But almost every climate prediction made so far has turned out to be optimistic including those published by the IPCC. We are entering an era unprecedented in human history. The latest paper from James Hansen states that "Eventual global warming due to today's GHG forcing alone -- after slow feedbacks operate -- is about 10°C." And that's if we stop all emissions today. The earth hasn't seen temperatures like that for something like 40 million years. We're more resourceful than any other creature in history, so it's possible some of us will survive. But life will look nothing like it does today.

And I think it's too late for Florida in any scenario.