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Spiderwebs can capture environmental DNA, or eDNA, from vertebrate animals in their area, potentially making them a useful tool in animal monitoring, tracking and conservation.

The Litani river descends from Lebanon's snow-capped mountains into dusty towns, then bisects the country and empties out into the Mediterranean. Along the way, it serves as a lifeline and boundary demarcating religion, environments, and war.

NPR's Sarah McCammon previews this year's UN climate summit with Kelly Sims Gallagher, an environment and resource policy expert and dean of the Fletcher School at Tufts University.

Kids in the U.S. get most of their calories from ultra-processed foods, which are tied to health problems. Now, scientists are finding that kids don't all react to these foods in the same way.

In Somalia, photographer Nichole Sobecki saw how the worsening drought is transforming people's lives.

As consumers rebel against plastic waste, there's a growing question: Do we invent something people can toss without harming the environment or do we change people by giving them a chance to reuse?

Even well-intended comments about weight and dieting can actually harm children. Here's advice for how to set kids up for a healthy life and a positive self-image.

Brian Burrell, author of Postcards from the Brain Museum, discusses efforts to understand Einstein's intellect through the study of his brain.

Groups connected to the fossil fuel industry are trying to shape an international treaty to cut plastic pollution. And oil- and gas-producing nations are at the negotiating table.

Three citizenship ceremonies NPR attended in the Washington, D.C. area in January were largely celebratory experiences, despite a year of hurdles and changes to the naturalization process.