SAN LUIS VALLEY, COLORADO In the early 1990s, bumper stickers throughout this valley screamed "STOP AWDI" -- shorthand for American Water Development Inc., Canadian millionaire Maurice Strong's company, which wanted to sell the groundwater underneath his local ranch to distant cities. Farmers and ranchers allied with environmentalists, the National Park Service, the U.S. Fish and Wildlife Service and even a New Age ashram in protest, fearing that exporting water would obliterate crops, pastures and wetlands used by migratory birds. Locals overwhelmingly approved a tax to help fund a lawsuit against the plan. At a courthouse rally, musician Don Richmond crooned: Some of us have taken only what we need, Some of us have seen the need turn into greed, Some of us would sell our future down the drain, Washed down by water from the land of little rain. Strong lost, and a few years later, a similar water-export