Two billion people already live with too little water, and water as a means of social control could be a fact of life in the next decade. Potential conflict over water is just as great in developed countries as it is in the world's poorest nations, and the US is by no means immune. Multinational corporations have joined environmentalists in calling for action before it's too late. There will be big money in recycling, desalination and other technologies. Can they overcome the demands of agriculture, and the industrial way of life? What about global warming?