Mar 04, 2009 — The Great Lakes and the St. Lawrence River contain one-fifth of the world's fresh surface water, 90% of the fresh surface water in the U.S. But they've been battered by industrial pollution, farm and road runoff, and invasive species. The 185 foreign species in the Lakes and River cause billions of dollars in damage to the region's economy every year. After years of neglect by Washington, the Obama Administration is making a multi-billion dollar commitment to the cleaning up the Great Lakes. Environmentalists believe they have a big ally. David Sommerstein reports.