The chairman of the California Air Resources Board responds to the energy secretary's anti-hydrogen-fuel-cell stance.
Plentiful natural gas could help reduce carbon emissions, but it could also delay zero-carbon technology.
Some powerful industries may yet find ways to shift the burden of reducing emissions to others.
The automaker says that today's bankruptcy filing won't delay the release of its electric car, but it may not have much to say about it.
President Obama announced the funding at a solar-powered Air Force Base.
Congress fails to learn from the cap and trade failures in Europe.
The German automaker has invested in the company behind the Roadster electric sports car.
Obama's new standards could require a gas tax to get consumers to buy more efficient cars.
Temporary storage is good enough for now, a panel says.
Startup Better Place demonstrates a system for swapping out depleted batteries for charged ones.