carbon

Ethanol, the Next Generation: Corn Is Out, Cellulose Is In

It has become clear to politicians and scientists that corn-based ethanol isn't the solution for creating a home-grown fuel source. Enter "cellulosic ethanol," made from wood chips, weeds or algae: Is this the fuel of the future? A company called Mascoma is gearing up to prove it is.

Natural Gas Boom: Cheap, Clean Fuel Presents Problem, Too

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.

Exxon Launches Energy's Next Mega-Trend

The industry is poised for yet another revolution, triggered by ExxonMobil's $41 billion purchase of XTO. It's a clear sign that future growth in extractive energy will come from sources other than oil -- such as natural gas. Expect other oil majors to follow suit.

A Green Stock Index for Emerging Markets

Until now, green companies in the developing world have lacked a yardstick to track their stock performance versus the rest of the market. The newly introduced "carbon-efficient index" fills that gap -- just in time for the Copenhagen climate meetings.