Driven by new regulations and fracking, more coal power plants are retiring for cheaper, cleaner-burning natural gas. But scientists have yet to work out the fossil fuel's imperfect climate footprint.
Scientists are trying to predict what might happen if genetically modified salmon escaped growth facilities. It's a scenario often raised by critics who don't want the FDA to approve sale of the fish.
The American chestnut is poised to return — as a bionic, blight-resistant tree. Scientists hope to plant about 10,000 transgenic plantlets to pollinate trees in the "wild."
Treated sewage water accounts for half the water used by Israel's farms. Entrepreneurs are experimenting with ways to cut costs and to ensure that the 86 percent of wastewater that's recycled is safe.
NPR's Melissa Block interviews Environmental Protection Agency administrator Gina McCarthy on the second anniversary of the president's Climate Action Plan.
She asked consumers to stop eating Nutella because it's made with palm oil, which contributes to deforestation. NPR's Rachel Martin talks with Glenn Hurowitz, managing director of Climate Advisers.
New York state has banned fracking, but it is considering a plan to allow fracked gas to be stored under Seneca Lake — which isn't sitting well with residents of the state's Finger Lakes region.
The popularity of antlers as rustic décor is threatening deer and elk in the Pacific Northwest. The animals can naturally shed antlers, but some people harass or kill animals to get at prized racks.