
Drylands Could Hit 40% of Earth's Land by 2100, Study Finds
A CMIP6-based analysis using a CO2-modified PET framework projects global drylands expanding from about 38.6% of Earth's land today to roughly 39.3–40.3% by 2071–2100, with CO2-driven plant-water-use effects potentially slowing the rise; Australia is expected to see the strongest changes, though outcomes depend on emissions scenarios.


