Creeping desertification in China is swallowing thousands of square kilometers of productive soil every year. It’s a challenge of gigantic and unprecedented proportions.
The rate of desertification increased throughout the second half of last century and, although this trend has since stabilized, the situation remains very serious.

Sand dunes in the Gobi desert, some 1250 miles northwest of Beijing, on April 20, 2016. Nicolas Asfouri/AFP/Getty Images