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The Great Energy Challenge
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Light Bulb Savings Calculator
How much can you save yourself, and the world, by switching to more efficient bulbs?
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The Global Electricity Mix
An interactive view of how regions and countries around the world generate their power.
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Quiz: What You Don't Know About Nature's Forces of Energy
You've seen the havoc that nature can wreak, but have you ever considered how much energy is generated by hurricanes, volcanoes, or lightning?
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The World's Water
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Water for a Thirsty World
Safeguarding one of the world's most important resources.
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Visualizing Our Global Water Footprint
You might be surprised to see how the daily choices you make affect critical watersheds around the world.
National Geographic Magazine
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Outer Banks Pictures
North Carolina's Outer Banks is the home and heart of photographer David Alan Harvey.
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Koala Rescue Photo Gallery
Koalas are under siege. Can Australia rescue them?
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Photos: In the Field
Browse breathtaking images of life on the Serengeti.
