Our oceans harbor nearly half of all life on the planet. See the sea in all its forms in this gallery.
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Recent government studies have concluded that polar bears could go extinct by 2050 if global warming continues to melt Arctic sea ice, which the bears rely on for hunting. Here, an adult bear leaps between ice floes near Devon Island, in Nunavut, Canada.
Photograph by Ralph Lee Hopkins
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Take a video tour of Mercedes-Benz's new BlueTEC diesel technology. Watch the Video |
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Green EarthEarth's stunning landscapes remind us why our planet deserves our protection. Photo GalleryInteractive Quiz |
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Conservation EffortsEarth's health is in our hands. Learn how humans are working to protect and restore our planet. Photo GalleryInteractive Quiz |
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Blue EarthFrom the Galápagos to the Great Barrier Reef, go deep into Earth's amazing oceans. Interactive Quiz |
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