When cows burp, they emit the potent greenhouse gas methane into the atmosphere. But by adding seaweed to the cows' diets, researchers are noticing a dramatic reduction in methane production.
Hawaii is about to ban the sale of sunscreens containing certain chemicals that have been shown to harm coral reefs. Environmentalists urge a switch to mineral-based products.
NPR's Lulu Garcia-Navarro talks with Dr. Randi Hutter Epstein about her new book Aroused, which tells the story of the scientific quest to understand human hormones.
In one year, fertilizer production in the U.S. emitted as much carbon dioxide as two million cars. What if we could help plants make their own nitrogen so they wouldn't need man-made chemicals?
The company's U.S. bottled water unit had been found to be operating under a long-expired permit, taking tens of millions of gallons a year from a watershed in the San Bernardino National Forest.
About 3,800 objects purchased by Hobby Lobby were returned to Iraq in May. Some come from an ancient Sumerian city, Irisagrig, and indicate that life there was "pretty good," an archaeologist says.
Researchers find that during extra innings, baseball umpires make calls in a way that tends to end games sooner. This seems to be because umpires aren't given additional money to work extra innings.