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National Geographic Investigates: Not a Drop to Drink: Water for a Thirsty World (NG Investigates)
National Geographic Investigates Not a Drop to Drink Water for a Thirsty World - NG Investigates Author:Michael Burgan Water is one of Earth?s hot environmental topics. The scarcity of clean drinking water will have dramatic consequences for humanity in the 21st century: water disputes could spark regional conflict, while increased desertification and drought could affect world food supplies and the future of farming. Not a Drop to Drink conveys a clear m... more »essage to young readers about this precious commodity and our urgent need to conserve it.« less
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