Will nations build on climate-change momentum of 2007?

In 2008, expect developing nations to play a more active role in negotiations for the post-Kyoto Protocol period.

Europe's little 'Smart' car to hit U.S. streets

Hugely popular in many European cities, the teeny tiny two-seater has already been reserved by 30,000 American residents.

Home energy use gets a 'smackdown' on reality TV

Even an 'überenvironmentalist' family found it could save a lot more when a competition was at stake.

Will nations build on climate-change momentum of 2007?

Climate worries complicate Alaska drilling plan

Lease sales could produce 15 billion barrels of oil, but environmentalists say drilling would threaten already melting habitat.

States eye stricter curbs on Great Lakes water

Lake levels reached record lows last year, and the region worries that fast-growing states and communities will try to grab its water.

California's data challenges EPA

The Golden State filed suit on Wednesday for the right to limit greenhouse-gas emissions from autos.

Do polar bears need U.S. protection?

A federal agency is poised to say whether global warming means the bear should be added to the 'threatened species' list.

Do polar bears need U.S. protection?

A federal agency is poised to say whether global warming means the bear should be added to the 'threatened species' list.

America: Step up on climate change

Global warming is the nuclear issue of our age.

Can the world act fast enough to save the disappearing tuna?

Scientists say drastic measures need to be taken to restore the bluefin.

What Bush really won in Bali

For the first time, all nations said they will consider ways to reduce global warming – as Bush sought.

A big chill for global warming

A techno-fix to quickly cool the planet needs research in light of new data that climate change is coming fast.

A dirty way to fight climate change

A promising strategy: Store carbon in the soil.

Clean energy vs. whales: how to choose?

Northwest's dams are a source of clean energy. But scientists say they endanger salmon and orcas.

A tax on carbon to cool the planet

Forcing higher prices for fossil fuels would be simple, fair, and effective. Why do politicians fear to do it?

Cranberries are headed north

Farmers see signs that the climate-sensitive cold-loving berries are shifting their range into Canada. Blueberries, too. What's to be done?

Zip along with shared cars, bikes

The Zipcar and Flexcar merger, and cities' interest in bike-sharing, show openness to novel transit.

Be wary of complex carbon caps

The global-warming fight can't wait to work out the kinks in a cap-and-trade scheme.

Charismatic bears on thin ice

As the Arctic heats up sooner than scientists anticipated, animals like the polar bear are losing ground.