How will the climate become less favorable for the rich? The areas most affected are disproportionally third world countries. In the west, food prices might rise some, but the rich won't care. Sea levels will rise, but it will be happening slowly (up to 1000 years for Greenland to melt completely), and governments will be mitigating that, so the rich won't be paying much there either. If you live in London, Paris, Rome, even on Manhattan, the 7 meter sea level rise won't mean anything. It won't do anything. Long Island and Jersey will need significantly mitigation though, as will areas of Palo Alto and Menlo Park, like the Googleplex, but we have hundreds of years to build those dikes, and we will easily be able to predict when and where they are needed.