Global land becoming drier, but wetter areas within arid regions increasing.
The researchers used satellite data to study changes in dryness and land degradation globally from 2000 to 2017. They found that some arid regions became drier, leading to more hyper-arid areas. However, wetter areas within arid regions increased during this time. The overall extent of degraded land slightly decreased, covering 9.2% of the total land area.