Valerie Volcovici

WASHINGTON (Reuters) - Environmental regulators may have underestimated by 50 percent the amount of the greenhouse gas methane emitted in the United States, according to a study published on Monday...

WASHINGTON (Reuters) - Concessions made by the United Nations' aviation body to wrap up two weeks of tense negotiations could make achieving the goal of a market-based measure to cap...

MONTREAL (Reuters) - The United Nations civil aviation body reached consensus on a roadmap on Thursday to create what would be a market-based scheme to help curb carbon emissions from...

(Reuters) - The U.S. Environmental Protection Agency will take one of the biggest hits of any federal agency if the government shuts down this week, operating with under 7 percent...

WASHINGTON (Reuters) - The Obama administration will unveil on Friday new regulations expected to set strict limits on the amount of carbon pollution generated by any new U.S. power plants,...

WASHINGTON (Reuters) - Democrats from West Virginia, concerned about jobs in the major coal-producing state, urged President Barack Obama's chief environmental regulator to be flexible when putting in place future...

WASHINGTON (Reuters) - The World Bank's board on Tuesday agreed to a new energy strategy that will limit financing of coal-fired power plants to "rare circumstances," as the Washington-based global...