After global warming, the water wars

The next big environmental tussle will be about water, according to Water Wars by Vandana Shiva. She charts the growing privatization by multinationals of communal water rights. The free-market comes to water. Hey, some day two or three corporations could own all the water. Now that's power. In related news, Yale Professor Craphogger is examining the possibility -- in a world short of water -- of ebaying your pee.