The Oglala Sioux aim to reclaim their landscape and culture heritage
Hoping to defuse a three-decade feud over whale hunting, three academics are making an audacious proposal: The world should put a price on killing whales and allow conservationists and whalers alike to bid on the right to take them.
A lack of transmission lines makes wind farming an iffy crop
A new drilling technology is opening up vast fields of previously out-of-reach oil in the western United States. This new drilling is expected to raise U.S. production by at least 20 percent over the next five years. And within 10 years, it could help reduce oil imports by more than half.