Sahara Expansion 1920-2013 (IMAGE)

University of Maryland

Sahara Expansion 1920-2013

Caption

This pair of images shows the change in the boundaries of the Sahara Desert during the period 1920-2013, broken down by season. Dotted lines show the boundary as it existed in 1920, while solid lines show the boundary in 2013; both boundaries are averaged across the three months of each season. (Winter = Dec-Feb; Summer = Jun- Aug). Brown shaded regions indicate desert advance while green shaded regions indicate desert retreat.

Credit

Natalie Thomas/Sumant Nigam/University of Maryland.

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