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Freshwater Advocates

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    Sandra Postel

    Sandra is a leading authority on international freshwater issues and is spearheading our global freshwater efforts.

  • Photo: Jon Waterman at the end of the Colorado River

    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.

  • Photo: Osvel Hinojosa Huerta

    Osvel Hinojosa Huerta

    For more than 15 years, Osvel Hinojosa Huerta has been resurrecting Mexico's Colorado River Delta wetlands.

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The Environment in Pictures

  1. Photo: A zinnia hybrid flower

    Patterns in Nature

    Enjoy close-up photos of a variety of flowers, trees, leaves, cacti, and even flowering moss from around the world.

  2. Photo: Geysers and mineral pools of Nevada's Black Rock Desert

    Photo Gallery: Desert Landscapes

    Discover dunes and dive into seas of sand from Australia to the Middle East and beyond in this gallery dedicated to Earth’s most barren landscapes.

  3. Fire tornado picture

    Photos: Fire "Tornadoes" Explained

    "Firenadoes"—such as the one filmed recently in the Australian Outback—aren't rare, just rarely reported, an expert says.

  4. A sunny, woodland path runs uphill through colorful trees

    Autumn Colors

    Fall into riotous hues and changing landscapes with this collection of autumn photos from National Geographic website visitors.

  5. Photo: Sunset at waterfalls

    Rivers Photos

    Rivers run through the heart and soul of countless communities. But, increasingly, they run on human terms rather than on Mother Nature’s.

  6. Picture of cedar trees, Japan

    Life in Color: Green

    How green is your valley? Very—and so are frogs, snakes, snails, butterflies, rolling hills, and more. Go green with this gallery of soothing images.

  7. Photo: Water lily

    Wallpaper: Flora

    Put the intricate patterns of flora on your desktop with close-up photos of a variety of flowers, trees, leaves, cacti, and even flowering moss from around the world.

  8. Huge artificial trees outside a building in Singapore

    Pictures: 10 Green-Tech City Solutions for Beating the Heat

    From a solar mansion in China to a floating farm in New York, green buildings are sprouting up in cities around the world. Among their many benefits are curbing fossil-fuel use and reducing the urban heat island effect.

  9. Photo: Close-up of a deep-sea frill shark

    Deep-Sea Creatures

    Adaptation is the name of the game when you live thousands of feet below the water's surface. See how these deep-sea denizens make the most of their deep, dark home.

  10. Picture of lightning striking an erupting volcano in Iceland

    Extreme Weather Photos

    From volcano lightning to landslides, Mother Nature throws some spectacular and scary screwballs our way. Take a look at the weirdest and wickedest weather of all.

How to Feed Our Growing Planet

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    Feed the World

    National Geographic explores how we can feed the growing population without overwhelming the planet in our food series.

See blogs, stories, photos, and news » »

@NatGeoGreen on Twitter

The Great Energy Challenge

  1. Photo: Aerial view of a city at night

    What Is It?

    An initiative to help you understand our current energy situation.

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    Personal Energy Meter

    See how you measure up against others, and how changes at home could do tons to protect the planet.

Step Up to the Challenge »

The World's Water

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    Help Save the Colorado River

    NG's new Change the Course campaign launches. When individuals pledge to use less water in their own lives, our partners carry out restoration work in the Colorado River Basin.

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    Water Grabbers: A Global Rush on Freshwater

    A special series on how grabbing water from poor people and future generations threatens global food security, environmental sustainability, and local cultures.

Learn More About Freshwater »