Have you ever looked at a mountain and wondered why there were trees on one side but none on the other? Or noticed different ...

In fantasy worlds, trees like the Lord of the Rings’ Ents are agile and mobile. In the real world, they’re slow.

A new study published in Nature Communications has found that 17.31% of tropical tree cover—an area spanning 395.9 million ...

News about Vladimir Putin, including commentary and archival articles published in The New York Times.

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