For the first time, all nations said they will consider ways to reduce global warming â€“ as Bush sought.
A techno-fix to quickly cool the planet needs research in light of new data that climate change is coming fast.
A promising strategy: Store carbon in the soil.
Forcing higher prices for fossil fuels would be simple, fair, and effective. Why do politicians fear to do it?
Farmers see signs that the climate-sensitive cold-loving berries are shifting their range into Canada. Blueberries, too. What's to be done?
The global-warming fight can't wait to work out the kinks in a cap-and-trade scheme.
As the Arctic heats up sooner than scientists anticipated, animals like the polar bear are losing ground.
A recent deal to protect the habitat of endangered coral may offer US environmentalists new leverage.