The latest news on renewable energy
Many politicians say the United States should spend hundreds of billions on a crash clean-energy program.
Claymore fund spreads bets across 25 stocks globally.
Industry drivers are "stronger than they've ever been," says Guinness.
Better using the Earth's heat is part of the Internet giant's drive for cheaper renewable energy.
Daniel Yergin forecasts clean energy at 7 to 16 percent of world electricity supply by 2030.
Here's how to separate the winners from the losers in this hot sector.
$1 billion installation would use parabolic mirrors to generate power southwest of Phoenix.
Incentives for clean power fizzle, while oil tax breaks remain in place.
The loss of key GOP votes was a critical factor.
On the record with Larry Brilliant on solving the world's problems as Google's point man