Ancient forests took 100,000 years to recover from the last global warming period similar to today – Wyoming fossils reveal what happened

Photo: Mosier Gulch in Wyoming – September 30, 2017. Photo credit: BLM Wyoming photo by Elyna Grapstein via Flickr. CC BY 2.0. Article by Regan E. Dunn. The Conversation –  August 13, 2026.

Fifty-six million years ago, Earth’s forests reached a tipping point. They had grown dense, lush canopies at the start of one of Earth’s most intense episodes of greenhouse warming. But those canopies began to thin. As global temperatures rose by as much as 11 degrees Fahrenheit (6 degrees Celsius), heat and drought put stress on the forests, killing large numbers of trees. […]

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