The French capital last week briefly dethroned New Delhi and Beijing as the world's most polluted city, according to one company that measures air quality.
NPR's Kelly McEvers speaks with KPCC reporter Molly Peterson on how effective California's new water restrictions will be in the midst of the state's historic drought.
For the first time, scientists have estimated the amount of antibiotics pigs, chickens and cows consume globally — and how fast consumption is growing. Which country uses the most drugs on farms?
The regulations, which go into effect in 90 days, establish safety measures for wells and for drilling companies to publicly disclose chemicals used in the process.
Low oil prices have led to a drop in drilling, but not as much as you might expect. In some parts of the state's Bakken oil patch, production continues at a feverish pace.
An uptick in malnourished pups on the coast has rescue centers struggling to keep up. Changing weather patterns and warmer ocean waters could be to blame, but it's still too early to tell.
With a little help, scientists say that seaweed growing along the Maine and New Hampshire coasts could become the "kale of the sea." The first step is teaching chefs and consumers how to enjoy it.
Gov. Chris Christie is defending the state's $225 million settlement for decades of contamination at two refineries as a "good deal." But Democratic lawmakers and environmentalists say otherwise.
He directed the federal government to cut emissions by 40 percent within the next decade and to increase its use of renewable energy sources to 30 percent of total consumption.