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A small band of passionate climate activists feel so desperate about the climate crisis that they've launched a hunger strike to pressure lawmakers to commit to reducing greenhouse gases.

One in five Sierra Nevada conifers are no longer compatible with the environmental conditions around them, raising questions about how to manage the land. Researchers say it may get worse.

An increasing body of research finds people's beliefs about climate change can be changed by big disasters, like the current flooding across America's heartland.

Gassy cows account for a good deal of the methane — a powerful greenhouse gas — generated by livestock farming. Danish researchers think feeding cows oregano might help rein in the bovine burps.

Policymakers and scientists are strongly criticizing comments by Michael Griffin, the head of NASA. In an earlier interview with NPR, he said that he's not sure global warming is an issue that the space agency — or humans — need to "wrestle with."

The Chinchorros, who lived between modern-day Peru and Chile, mummified their dead at least 2,000 years before the Egyptians. But some mummies have begun to turn to ooze, so scientists investigated.

The population of monarch butterflies that migrated south to Mexico to hibernate fell 26% in 2020 compared with the previous year, according to a new report.

At the United Nations climate talks in Warsaw, Poland, conflict between rich and poor nations is mounting. The developing world wants large sums of money to help them adapt to climate change. The U.S. and Europe say they're doing what they can to help but times are tough.

Students at Iowa State University can now enroll in a climate science major aimed at exploring climate change solutions. The new program has studies in climate policy, economics and communications.

As many federal governments slow — or reverse — climate action, Austria's capital, Vienna, wants to show how cities can take the lead.