AI Summary

Dryland ecosystems, covering 40% of Earth’s land and supporting over 2 billion people, are becoming more unstable, a new Nature Climate Change study reports. Satellite data covering more than forty years show that rising atmospheric CO₂ has amplified plant growth during wet years in these regions. This has produced a persistent greening trend across drylands over time. The study links the greening to increased CO₂ rather than to changes in rainfall patterns. The findings suggest that dryland vegetation dynamics are shifting as climate change progresses.

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