EcoNewMexico.com

A team at the Almaden Research Center of I.B.M. in California is trying to develop a new battery technology called lithium air that could allow a car to go 500 miles on a single charge. But a top researcher says that it will take many years, if it ever happens at all, to make the technology useful.

Turkey may be frustrated in its bid to become part of the European Union, but by the end of September, it will join Europe's electric grid.

The energy industry centered in Prudhoe Bay is the economic engine of the North Slope, helping preserve the Inupiat culture, but it also presents a potential threat to that culture. Mayor Edward Itta of the North Slope Borough e-mailed answers to our questions about these conflicts.

As lawmakers call for new inquiries into Thursday's accident, oil industry executives say it will now be more difficult to lift the government's offshore drilling moratorium in the Gulf of Mexico.

A group of fisheries scientists argue that the Marine Stewardship Council, an influential body that ranks fish sources as sustainable, grants its seal of approval too easily. As a result, some fish populations may be more endangered than consumers believe.

The crackdown by Vietnamese forestry officials is part of a broader effort to halt the illegal international trade in the meat of threatened species.

After Pacific Gas & Electric, the giant California utility, began installing smart meters in the state's Central Valley, the company was swamped with complaints from residents that their utility bills had spiked. But an independent review of the smart meters released Thursday found that the devices were functioning properly and attributed the high charges to a heat wave last year that coincided with their installation as well as poor customer service by P.G.&.E.

Tibet's high-altitude meadows disappear as global warming and overgrazing accelerate desertification. "Once the grasslands are destroyed, they rarely come back," a Chinese official says.

A mountain lion wandered into the uniquely tolerant town of Berkeley, Calif., on Tuesday, and was ultimately shot by police. Heated debate has ensued.

Exploratory drilling by a Scottish oil firm was halted after four Greenpeace protesters scaled the rig and suspended tents from its underside.

A tongue-in-cheek commercial from an antipollution group, already a hit on YouTube, delivers a message about what the city's pollution could portend.

An anatomy of the oil giant's media response to the Gulf disaster.

Exelon, which recently backed away from building new nuclear plants, announced that it was buying John Deere Renewables.

Homeowners who participated in a program that let them repay the cost of solar panels and other energy improvements through an annual surcharge on their property taxes must pay off the loans before they can refinance their mortgages, two government-chartered mortgage companies said on Tuesday

Bjorn Lomborg's latest book is unlikely to bolster his popularity among those opposed to drastic immediate action to curb greenhouse gas emissions.

Politicians in Britain and Bulgaria are seeking ways to make nuclear energy affordable.

Both sides in the mountaintop removal mining debate are hardening their positions, taking their cases to Washington -- and to the courts.

The federal agency that regulates offshore drilling is taking steps to end a long history of conflicts of interest and excessive coziness with the companies it is charged with policing.

The European Union's biofuels targets are driving an extensive "land grab" in Africa, a conservation group claims.

The Nuclear Regulatory Commission is proposing a fine against an unlikely violator: a coal plant.