David Doniger is the policy director of the NRDC's Climate Center in Washington, D.C.
Heat-trapping hydrofluorocarbons are emerging as a new climate priority.
The EPA just announced new regulations to curb the air pollution associated with the hydraulic fracturing of natural gas wells. Many companies, such as Southwestern Energy, already meet the new rules.
Congress this week will take up a bill that would reverse new federal lighting efficiency standards -- even though it's already led to the creation of new technologies and are saving households billions of dollars a year.
The Supreme Court today reaffirmed that it is the Environmental Protection Agency's job to curb carbon emissions under the Clean Air Act. Now it's time for the EPA to act.