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A device the size of an energy bar lets backcountry travelers summon assistance from nearly anywhere on Earth. It's saved lives. But the ability to call for help at the push of a button isn't always a good thing.

In a little-known pocket of India, jungles and communities have been leveled by decades of power plant development. The latest project was financed by U.S. taxpayer dollars.

Now that electric cars can go just as far as gasoline-powered models, the map opens up

If conservationists are detained for grizzly bear smuggling, don’t ask why.