China has unveiled a plan to limit pollution in its lakes by 2010 and return lakes to their original, unpolluted state by 2030. Officials have specific plans to attain their goal: strictly regulate release of wastewater, close factories that heavily contribute to water pollution, improve sewage treatment, remove or limit fish farms, and ban highly toxic pesticides and phosphorus-containing detergents near large lakes. China’s three largest lakes provide drinking water for millions — or at least they do when giant algae blooms aren’t rendering the water undrinkable.