Human activities drive global dryland greening
A new global dryland assessment using long-term satellite observations reveals widespread vegetation greening over the past two decades, reversing long-held expectations of accelerating desertification. Using satellite-based productivity data, researchers quantified where greening occurred, at what speed, what forces contributed to it, and how much was driven by agricultural expansion rather than climate or CO₂ fertilization alone. The findings reshape our understanding of dryland ecosystems and highlight the strong influence of human land-use practices.
Drylands cover more than 40% of the global land surface and support over three billion people while maintaining essential ecological ...