Congress to begin work on a bill the next president would be willing to sign.
A report by the Brookings Institution looks at the 100 largest metro areas in the US, using data on residential energy consumption and highway transportation.
Population, pollution, and climate put the squeeze on potable supplies – and private companies smell a profit. Others ask: Should water be a human right?
It doesn't come down to polar bears, it comes down to cost – and while the cost of acting is steep, the cost of inaction appears to be steeper, experts say.
A recovery plan is ensured. But US includes caveats to safeguard oil and gas drilling.
This week, it began importing potable water by ship as part of a broader effort to meet needs. Its reservoirs are down to 20 percent capacity.
Wednesday’s designation is the first to list a species due to global warming threats.
A sluggish spring could mean a disappointing harvest on top of already-high corn prices.
The German research effort is one of the first to attempt 10-year climate forecasts.
The Arctic can be frustrating for scientists trying to predict global warming.
Methane levels in the atmosphere rose in 2007 after 10 years. Scientists are trying to find out why.
Is this trip necessary? A jet lands in Montreal. Proponents of air travel tout its importance to the global economy. Detractors say per-passenger emissions carry too high a cost.
Eco-minded Scandinavians crave winter vacations. Yet the long flights add to greenhouse gases. Should they hit the beach or save the planet?
Politicians at home and abroad question the president's strategy, while new climate studies pour in.
Air-quality experts worry that proposed changes to clean-air regulations may allow developers to build the plants near pristine areas.
NASA's James Hansen frequently clashes with global warming 'deniers,' as well as the Bush administration.
People with no formal training are helping scientists track and record birds, fish, stars, and plants in their neighborhoods online.
Too few people are changing their lifestyles, environmentalists say, and too few politicians are acting.
Should the world put less focus on emissions caps and more on spurring clean technologies?