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More Environment Quizzes
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Drinking Water and Sanitation Quiz
For much of the world, drinking a glass of water is not as easy as filling up at a water cooler or even the kitchen sink.
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Freshwater 101 Quiz
Where does water sit around the globe? How is it used to produce everyday goods? Test your knowledge about freshwater.
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Climate Change and Water Quiz
How much freshwater do we have and how is the changing climate affecting our supply?
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Extreme Habitats Quiz
Test your knowledge of the most extreme places on Earth.
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Global Warming Quiz
Global warming is a complex issue that involves many different environmental factors. Think you know the ins and outs of global climate change?
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Going Green Quiz
From PV cells to CFLs, there's a lot you can do to help reverse global climate change and live a more eco-friendly life.
Change the Course
Freshwater Heroes
Environment Photos
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A Green Workplace
Help Save the Colorado River
You can help restore freshwater ecosystems by pledging to cut your water footprint. For every pledge, Change the Course will restore 1,000 gallons back to the Colorado River.
Freshwater Advocates
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Sandra Postel
Sandra is a leading authority on international freshwater issues and is spearheading our global freshwater efforts.
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Jonathan Waterman
He's paddled the Colorado River from its headwaters to the delta, in an effort to bring awareness to this mighty river at risk.
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Osvel Hinojosa Huerta
For more than 15 years, Osvel Hinojosa Huerta has been resurrecting Mexico's Colorado River Delta wetlands.
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Blogs
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Timelapse Shows Beauty of Lake Superior
A year in the making, this video highlights nature's splendor.
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Wastewater Brings New Life
A wetland flourishes in Mexico thanks to a treatment plant.
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Uncovering Great Lakes Garbage Patch
Scientists investigate the impacts of "micro plastics" on lake ecosystems.
Explore Freshwater
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Written in Water
Read a collection of essays authored by heroes and leaders in the field of water solutions and innovations.
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Eco Rescue: Rivers Game
Challenge yourself to the limit in this extreme river cleanup game.
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Conserve Resources
National Geographic Kids: Find out how you can save water!
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National Geographic Magazine
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Manatees Pictures
The Florida manatee is thriving in Kings Bay, and so is tourism. Therein lies the problem.
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New Photos: Red Gold
Inside the Amazon's rush on mahogany, a threatened tree.
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The New Oil Landscape
The fracking frenzy in North Dakota has boosted the U.S. fuel supply—but at what cost?
