See how much you don't know about energy use and energy sources with this quiz from National Geographic.
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Environment News from National Geographic News
See photos of freshwater mammals, such as manatees, hippos, otters, and more, in this photo gallery from National Geographic.
Learn about the water consumed to make everyday products.
Natural disasters facts, pictures, quizzes, video from National Geographic
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Hit the road with National Geographic road atlas maps. These world atlas maps
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A winter ascent on Pakistan's Gasherbrum II with Cory Richards
The Future of Food
National Geographic explores how we can feed the growing population without overwhelming the planet in our food series.
Latest From Nat Geo
Did you know the Atlantic puffin can growl like a chainsaw and honk like a goose?
Flip through nine pictures of these marine mammals in honor of sea otter awareness week.