A river at risk

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A very insightful short movie by Alexandra Cousteau, filmmaker, environmental advocate, and National Geographic "Emerging Explorer", on the Potomac River. The Potomac provides water for 4 million people in the US and is threatened by wastewater overflowing from sewers and agricultural waste. According to a report by American Rivers, the Potomac is one of the most endangered rivers in the USA.

Follow Alexandra Cousteau's trip along the Potomac: http://bit.ly/UDsiMm