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In a series of reports for Radio Expeditions, Elizabeth Arnold journeys to Sri Lanka with one of the first teams to assess the environmental aftermath of the deadly Indian Ocean tsunami.

Oil production in the tar sands of Canada is increasing as the demand for crude in the United States rises. The production of synthetic crude may meet U.S. needs, but it comes at a cost.

NPR's a Martinez talks to Lisa Speer of the Natural Resources Defense Council's International Oceans program, about a treaty that will open the door to more marine conservation.

There are traditional structures at the play park, like the swings, but even those have a wooden frame. Then there’s the mystical notes and designs, like the wooden mushroom pockets, the carved animals, and the interactive spaces like the sand pit.

The Museum for the United Nations has partnered with musicians to re-release some of their songs with added nature sounds to generate royalties for conservation efforts.

If a major hurricane, flood or wildfire happens during the pandemic, evacuation shelters could be dangerous and cross-state aid impossible. So disaster response experts are planning new strategies.

Ever since the Soviet Union collapsed two decades ago, many Russians have felt they were a nation in retreat. But Prime Minister Vladimir Putin sees the Arctic as a place for Russia to expand, with an eye on its natural resources.

Tiny shards of plastic called microplastics are all over the environment and even inside human bodies. Researchers have found a type of bioengineered algae that can clean up these pesky particles.

Europe has extracted natural gas from organic waste for about a decade, and now it's spreading to the U.S. In Colorado, efforts are under way to produce natural gas from human waste and food scraps.

Should we concentrate farming in a small area, or spread it out to reduce the environmental impact? It's a dilemma farmers face as they feed a growing planet. A new study weighs in.