Earth’s vegetation is changing faster today than it has over the last 18,000 years
MADISON – A global survey of fossil pollen has discovered that the planet’s vegetation is changing at least as quickly today as it did when the last ice sheets retreated around 10,000 years ago. Beginning some 3,000-to-4,000 years ago, Earth’s plant communities began changing at an accelerating pace. Today, this pace rivals or exceeds the …