Lawmakers aim to block the agency from curbing carbon emissions under the Clean Air Act, saying it's the job of Congress, not "unelected bureaucrats."
Why would a company voluntarily share data about its carbon emissions? Because it's a good business move.
London's latest nickname is the electric car capital of the world -- bolstered by a plan to introduce 100,000 electric cars and 25,000 charging stations.
African nations say Kyoto Protocol must be extended so developing countries can have continued access to clean-energy technology.
Developing countries wait for U.S., others to commit to big changes.
Here's why six greenhouse gases were classified as pollutants that threaten the health and welfare of Americans, and what that means for you.
As U.N. climate talks begin in Copenhagen, the Obama administration takes steps to regulate U.S. emissions with or without congressional approval.
Premier Manmohan Singh said there are many ways for India to reduce emissions without effecting the economy.
Commitment removes obstacles to deal at global climate talks.
California's Amtrak trains get an environmentally friendly upgrade.
