renewable energy

Science, Tech & Environment

The downside of biofuels

Washington has touted the increased use of biofuels, such as ethanol, as a way to reduce carbon emissions, but a study published today suggesting boosting the use of biofuels also poses some environmental hazards, as The World's Jason Margolis explains.

Global Politics

California climate law under fire

Supporters of California's climate change law say it will spark a green technology revolution and boost the state's economy. Critics say it will hurt the state's economy at a time when it can ill afford it. Rachel Myrow has this story from San Francisco.