China’s expanding deserts encroach on growing cities, and the seas of sand leave families struggling
Accelerated by climate change and human activities, China's deserts have been spreading at an annual rate of more than 1,300 square miles. Government efforts to contain the growth have included relocating residents, planting trees and placing limits on herding. But the utility of the measures is debated, and as the arid northern regions continue to expand, families at the deserts' edges fight to survive.
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