A lack of transmission lines makes wind farming an iffy crop
Once an icon of the American west, bison are now hazed through costly government-driven efforts and killed in droves around Yellowstone National Park during the winter. Their crime: migrating outside of the park's borders onto public and private land in Montana, searching for food.
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.