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Astroturf-Covered Car

Photo: Dog sitting in astro-turf covered car
A dog waits for its owner's return in an Astroturf-covered Volkswagen that runs entirely on used vegetable oil. The owner gets the oil free from a potato chip shop in Oregon.
Photograph by Sarah Leen

Global Warming Topics


Photo: Montana

Enter Sweepstakes

Take a photographic journey through Montana and enter to win a trip!

Photo: 2009 Winner

Photo Contest

Find out who takes home the Grand Prize!

Order Extreme Ice Now

Photo: The cover of Extreme Ice Now

This stunning collection of photographs illustrates the catastrophic melting of glacial ice.

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Photo: Two penguins

Help conserve the world's natural resources.


Photo: EarthPulse logo

Learn about your world with National Geographic's visual guide to global trends.