Starfish in the Pacific northwest are being decimated by what's called wasting disease. Researcher Drew Harvell tells NPR's Scott Simon that warming seas are making it worse.
Converting the shells into biogas could provide most of the heat for a planned city of 200,000, engineers say. There's precedent in Australia, where macadamia nut shells are generating power.
Three years of severe drought in California is forcing farmers and ranchers to make some tough choices. In some cases, they're rethinking everything about their business and finding new opportunities.
The long-delayed project is a jobs generator to some and an ecological disaster to others. Ahead of a key Senate vote, we revisit what the Keystone XL pipeline would do and why it's so contentious.
China has for the first time announced a ceiling to its future carbon emissions. Critics say the commitment is primarily symbolic, and unlikely to have a significant impact in the near future.
Large-scale hog operations get a bad environmental rap. But when it comes to processing the animals, the industry is a model of efficiency, making use of every last bit in sometimes surprising ways.
The U.S. throws out 35 million tons of food each year. While many restaurants, supermarkets and processors are taking responsibility, many consumers aren't. An EPA pilot program aims to change that.