Greenhouse Summer — Norman Spinrad

The world of the future is in a lot of trouble. Pollution, overpopulation, and ecological disasters have left the rich nations still rich, and the poor nations dying. Still, for international businesses it is business as usual. It is better to be rich. But is it all coming to a terrible end? A scientist has predicted Condition Venus, the sudden greenhouse end of the planet - but she can't say when. So the attention of the world is on a UN conference in Paris, where all hell is about to break loose.