carbon dioxide emissions

A natural gas boom is coming in the U.S, but while consumers are likely to benefit from the cheap energy source, investors may not. Huge new discoveries of domestic reserves may keep prices down, and the political push toward renewable energy sources could cut into producers' profits.

Eight states, New York City and three groups won the legal right to sue greenhouse-gas emitting utilities. The companies appealed to the Supreme Court, and the Obama administration has filed a brief supporting them. Find out the implications of this move.

A controversial project to scrub and store carbon dioxide from a coal-fired power plant in Illinois gets $1 billion from the federal government.