carbon emissions

What U.S. Energy Policy Needs: Less Coal, More Uranium

With cleaner air and energy self-sufficiency high on America's list of priorities, our irrational dislike of nuclear power looks increasingly imprudent. China, France and the U.K. have raced ahead safely on nuclear power: It's well past time for the U.S. to start catching up.

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.

How Did Global Warming Fare on Election Day?

As California voters wait to find out whether they've suspended a major global-warming law, which requires the state to scale back carbon emissions 25% to 1990 levels by 2020, New Mexico on Tuesday passed its own measure to reduce greenhouse-gas emissions

D.C. Power Couple Tells Solar Confab How to Pitch to GOP

Republicans can be friendly to solar energy -- just don't use the terms "recovery act" or "stimulus package" when lobbying them for government subsidies. That was the message from GOP political adviser Mary Matalin at the largest solar conference in the country on Thursday.

Honda Plugs Into the Electric-Car Bandwagon

With Honda's president saying the company had "no future" if it didn't make vehicles that emitted less carbon dioxide, the Japanese carmaker is now gearing up to join Toyota, GM and Nissan in the electric-car and plug-in hybird derby.

Five Technologies That Could Save the Environment

The stream of new and innovative ways to curb carbon emissions and (hopefully) reverse global warming seems never ending these days. But which environmental technologies are affordable and advanced enough to hold the most promise?

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.