Party On: Legislation passed last week allows the Federal Helium Reserve to continue selling the stockpiled gas. Above, Jonathan Trappe launches his 370-balloon craft from Caribou, Maine, in an attempt to cross the Atlantic Ocean on Sept. 12. Alexandre Ayre/Barcroft Media/Landov hide caption

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Here's Something Congress Can Agree On: Helium

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Forum Discusses Arctic Oil And Gas Searches

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A wildfire burns in Prescott, Ariz., on June 18. The fire covered nearly 11 square miles of the Prescott National Forest. Todd Tamcsin/AP/American Red Cross hide caption

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Is Living With Extreme Wildfires The New Normal?

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BP Oil Spill Trial To Begin Second Phase

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The Fragile, Invisible Connections Of The Natural World

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UN Climate Change Report: Sea Level, Air Temperature To Rise

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Saving Wild Places in the 'Anthropocene'

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Modern Humans Still Evolving, and Faster Than Ever

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"Bees are vital to the pollination and production of our fruits and vegetables ... unfortunately, they're all in trouble" — Marla Spivak James Duncan Davidson/TED hide caption

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Why Are Bees Disappearing?

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James Duncan Davidson/TED

Can 'Rewilding' Restore Vanishing Ecosystems?

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Aerial view of Biosphere 2, where Jane Poynter lived for two years and 20 minutes. Courtesy of Jane Poynter hide caption

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What Lessons Came Out Of Biosphere 2?

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"In habitats that are pretty much untouched, the sound is organized and structured in such a way so that each critter establishes its own bandwidth" — Bernie Kraus James Duncan Davidson/TED hide caption

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How Does Listening To Nature Teach Us About Changing Habitats?

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