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Poison ivy is poised to take full advantage of climate change. With warmer temperatures and rising carbon dioxide in the atmosphere, scientists say poison ivy grows faster, its leaves get bigger and its toxic oil becomes even more virulent.

Many people around the world rely on fish not just for protein but for critical micronutrients like iron and zinc. So declining fisheries pose major risks for global health, scientists warn.

The man hoping to help lead the Environmental Protection Agency, Andrew Wheeler, is a former lobbyist for coal and natural gas companies. As a young EPA lawyer, he worked on hazardous chemical rules.

The idea behind "clean coal" is technology that would capture for reuse most of the carbon dioxide emitted by coal-burning power plants. Entrepreneurs aim to use similar tech to clean natural gas.

A former U.S. congressman who worked at the East Millinocket mill for decades has emerged as the biggest cheerleader of the site's redevelopment.

With the growing popularity of tequila and mezcal in the U.S., a new generation of growers and distillers in the Southwest is trying to create a uniquely American agave liquor.

The dangerously monikered cactus is a source of joy in the Southwest. Albuquerque celebrates with music and yummy opuntia treats.

Scientists suspect that warming air and rivers, as well as smaller winter snowpack, is endangering western trout. But on a ranch in Montana, methods to protect trout from the effects of cattle ranching are helping the trout become more resilient to the inevitable change in their environment.

The agency's next acting chief has drawn praise as a capable administrator. But critics still say the transition from Scott Pruitt is a bit like "going from a train wreck to a house on fire."

NPR's Rachel Martin speaks with Vermont Sen. Bernie Sanders about how congressional progressives plan to preserve their infrastructure priorities as negotiations remain tenuous.