Articles on Streams

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Seoul’s Cheonggyecheon stream combines a restored urban stream with pedestrian paths, stepped seating and bridges along a major downtown corridor. (Luna Khirfan)

Many cities buried urban streams. Here’s how to bring them back

Stream daylighting can help manage stormwater, restore habitats and create greener, more walkable public spaces.
A large rock glacier fills a valley in Grand Teton National Park in Wyoming. Google Earth: Google, Airbus, Landsat, Copernicus

You’ve never heard of these glaciers, but they’re becoming critical climate havens as America’s iconic mountain glaciers and their water fade

They’re called rock glaciers, and they might not look like much, but they’ll continue to provide meltwater after the world’s iconic white glaciers are gone.
Fly-fishing in Alaska’s Tongass National Forest. Joseph/Flickr

What social change movements can learn from fly fishing: The value of a care‑focused message

Founded in 1959, the membership group Trout Unlimited has changed the culture of fly-fishing and mobilized members to support conservation. Could its approach work for other social problems?
Many ecologically important wetlands, like these in Kulm, N.D., lack surface connections to navigable waterways. USFWS Mountain-Prairie/Flickr

The Supreme Court just shriveled federal protection for wetlands, leaving many of these valuable ecosystems at risk

In Sackett v. EPA, a suit filed by two homeowners who filled in wetlands on their property, the Supreme Court has drastically narrowed the definition of which wetlands qualify for federal protection.
Wetlands like this one in California’s Morro Bay Estuary shelter fish, animals and plants and help control flooding. Citizen of the Planet/UCG/Universal Images Group via Getty Images

Which wetlands should receive federal protection? The Supreme Court revisits a question it has struggled in the past to answer

The Supreme Court opens its 2022-2023 session with a high-profile case that has major implications for both wildlife and landowners.
The Caban Coch dam, in Wales’ Elan Valley, is just one of the estimated 1.2 million river barriers in Europe. Sara Barrento/Nature

Europe’s natural waterways: death by a million cuts

New research published in the journal Nature reveals that more than 1.2 million flow barriers exist on European rivers and that approximately 10% are obsolete.

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