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

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…

Millions of years ago, rapid global warming dramatically altered Earth's forests. Human-driven climate change is working 10 times faster.