See how much you don't know about energy use and energy sources with this quiz from National Geographic.
Learn about the energy challenges we face in the future by calculating your carbon footprint, taking quizzes, and more.
Environment News from National Geographic News
Learn about the water consumed to make everyday products.
Google Maps Gallery brings classic National Geographic cartography online.
Natural disasters facts, pictures, quizzes, video from National Geographic
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Environmental Studies - National Geographic Sustainability
From New York City to Chicago, Venezuela to Lima, these rooftop gardens and urban vegetable patches are growing fresh food close to the people.
Get numerous freshwater resources from National Geographic.