A federal judge denied a request from the Standing Rock Sioux and Cheyenne River tribes to halt construction on the final piece of the pipeline in North Dakota.
Indoor and outdoor air pollution is one of the most extreme threats to children's health — and is on the rise, according to the World Health Organization reports.
From counting steps to hours of sleep, many people are tracking aspects of their lives. Now one company is merging energy saving with the interest in quantifying — making lowering electricity a game.
Many of America's farmers are successfully fending off environmental regulation, from the Obama administration's Clean Water Rule to a lawsuit in Iowa that's aimed at reducing nitrates in rivers.
President Trump promised to roll back fuel economy rules put in place by the Obama administration. It could take years to play out. What's at stake in the near term: the future of the electric car.
Opponents lost their bid to stop the Dakota Access pipeline, but their effort has energized others. Pipeline protests are expanding across the country.
NOAA's new weather satellite is carrying the first lightning detector ever parked in orbit over Earth. It has sent back its first images of real-time lightning storms in the Western Hemisphere.
Lyme disease is spreading, and this summer is shaping up as a whopper. Why has the tick-borne illness gotten so bad? The answer traces back to something the colonists did more than 200 years ago.
Environmental groups are concerned about possible cutbacks to the EPA. Steve Inskeep talks to David Goldston, director of governmental affairs for the Natural Resources Defense Council.