Sargassum seaweed off the coast of St. Martin in the Caribbean.

Stretching from West Africa to the Gulf of Mexico, a massive bloom of sargassum seaweed is swamping beaches and killing coastal wildlife. But scientists have discovered the floating algae also shelters a vast array of ocean creatures, and some are now calling for its protection. 

By Fred Pearce

  • Oceans

    A Surge of Marine Heat Waves Threatens to Scramble Ocean Life

    Fueled by climate change and a strengthening El Niño, record-setting marine heat waves are gripping oceans worldwide and playing havoc with sea life. Mounting evidence from recent events suggests the damage could be severe and long-lasting, both onshore and off.

    By Jim Robbins

  • Policy

    A Hard-Won Rule to Cut Chemical Plant Pollution Is Being Unraveled

    In 2024, the Biden administration enacted wide-ranging regulations to protect communities near petrochemical plants from air toxics. The Trump administration has since granted exemptions to scores of polluting facilities and is working to rewrite the long-awaited rule.

    By Beth Gardiner

  • E360 FILM CONTEST WINNER

    Filipino Cacao Growers Learn to Live With a Hotter Climate

    In “Chocolates Melting Away” — the First-Place Winner of the 2026 Yale Environment 360 Film Contest — Breech Asher Harani explores how cacao growers in the Philippines are developing new techniques to protect their crops from increasingly turbulent weather. 

E360 FILM CONTEST

A Bicycle Journey Across Brazil to Find a Vanishing Savanna

In “Here There Was Cerrado” — the Second-Place Winner of the 2026 Yale Environment 360 Film Contest — Natascha Otoya shows how industrial farms are plowing up the Brazilian savanna, changing the flow of water, and skewing human memory of the landscape.

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A red-cockaded woodpecker. The species lives in the hollows of longleaf pines in the southeastern U.S.

OPINION

For America’s Rarest Wildlife, Survival May Hinge on a Single Word

For 50 years, the Endangered Species Act has defined "harm" as not just injury to individuals but to the habitat on which they depend. By narrowing that definition, the Trump administration is leaving hundreds of species at risk of extinction.

By Ted Williams

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