Extent of the World’s Drylands

Using the UNCCD definition of drylands (land falling within the arid, semi-arid, and dry sub-humid zones), approximately 40 percent of the global land area is dryland.

Using the UNCCD definition of drylands (land falling within the arid, semi-arid, and dry sub-humid zones), approximately 40 percent of the global land area is dryland.