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Sustainability: Water — The Ogallala Aquifer

Part of the Earth's largest surface freshwater system, Lake Erie is a vital source of drinking water for 11 million people. Researchers Anna Michalak, Tom Bridgeman and Pete Richards are studying how farming practices and severe weather can increase the amount of fertilizer-derived nutrients in the water, which diminishes water quality and threatens the lake's ecosystem and the public's health.

The National Science Foundation (NSF) and NBC Learn (NBC News' educational arm) have teamed up to produce a new informative video series that examines the long-term health of one of America's most important resources: water.

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