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A New Border Wall in Arizona Would Block a Key Wildlife Corridor

The barrier, in a remote part of Arizona, would threaten one of the most important remaining animal migration routes on the state’s southern border, according to a new report.

© Sky Island Alliance

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Does the World Court’s Sweeping Climate Opinion Matter? Five Takeaways.

While the court doesn’t have enforcement mechanisms, it has a prominent voice, and its legal arguments could reverberate.

© John Thys/Agence France-Presse — Getty Images

Judge Yuji Iwasawa, president of the International Court of Justice, read out the court’s climate opinion on Wednesday in The Hague.
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Top U.N. Court Says Countries Must Act on Climate Change

The International Court of Justice called global warming an “urgent and existential threat” at a closely watched case in The Hague.

© John Thys/Agence France-Presse — Getty Images

Ralph Regenvanu, Vanuatu’s climate change minister, in The Hague on Wednesday.
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New Global Atlas Highlights Surprising Hot Spots of Fungal Biodiversity

A new global atlas of underground fungi suggests that some surprising biodiversity hot spots lie hidden beneath our feet.

© Tomas Munita for The New York Times

Russula, a species of fungus, growing in the forest near Chile’s Alerce Costero National Park during a 2022 expedition surveying fungi by the Society for the Protection of Underground Networks.
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North Carolina’s Bogs Have a Dirty Secret, and That’s a Good Thing

Peat bogs have huge potential to store planet-warming carbon. The ones in North Carolina just need some help to get healthy again.

Peat soil at Angola Bay Game Land in North Carolina.
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Ben Jealous, Sierra Club’s Executive Director, on Leave After Rocky Tenure

Ben Jealous, who joined the environmental group in 2023, has clashed with some employees and the organization’s union.

© Craig Hudson for The New York Times

Ben Jealous, executive director of the Sierra Club, at a climate rally in Washington in 2023. He is now on leave.
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