Stories by Ellen M. Gilmer

Waste dumps are the third-largest emitters of methane in the U.S. and release other harmful pollutants

Companies are no longer required to provide information about onshore equipment and controls that could reduce emissions of greenhouse gases

A thirst for water pits cities like Las Vegas against its rural neighbors

Iceland hopes electricity from renewable resources can power the servers that make the Web work

Cloud computing, per one report, is projected to help large U.S. companies save $12.3 billion on energy costs