"An independent journalist says he's found a way around the so-called 'ag-gag' laws by flying drones over large livestock operations to document animal welfare problems and pollution."

"Across the Canadian border, massive dams generate a seeminglyendless supply of hydroelectricity — a source of power that could help New England replace its closing coal and nuclear plants while cutting greenhouse gas emissions that contribute to climate change. But there’s a big problem: getting it here."

"The Obama administration took a step closer Friday to allowing oil and gas exploration off the Mid-Atlantic and South Atlantic coasts, drawing praise from the energy industry and criticism from environmentalists."

"Bob Perciasepe, deputy administrator of the Environmental Protection Agency (EPA), will resign next month to lead an energy and climate advocacy group, the agency announced Thursday."

"Google is teaming up with an environmental group map methane leaks from natural gas pipelines in US cities. Methane contributes to global warming, and Google hopes its new maps will encourage utilities to patch and replace old pipelines."

"The Environmental Protection Agency's (EPA) internal watchdog found "no indications of bias" after reviewing claims the agency waived public records fees for green groups but not conservative organizations."

"MISSOULA, Mont. — President Obama announced a series of climate change initiatives on Wednesday aimed at guarding the electricity supply; improving local planning for flooding, coastal erosion and storm surges; and better predicting landslide risks as sea levels rise and storms and droughts intensify."

"For a few weeks this spring, the Colorado River flowed all the way to the sea for the first time in a half a century. And during that window of opportunity, writer Rowan Jacobsen took the paddleboarding trip of a lifetime."

"The United States has not reached a state of energy security despite the natural gas boom that is sweeping the nation, the new head of the International Energy Agency (IEA) said Monday."

"John Christy, a professor of atmospheric science at the University of Alabama here, says he remembers the morning he spotted a well-known colleague at a gathering of climate experts."