Droughts have deep, widespread and underestimated impacts on societies, ecosystems, and economies. They incur costs that are borne disproportionately by the most vulnerable people. The extensive impacts of drought are consistently underreported even though they span large areas, cascade through systems and scales, and linger through time, affecting millions of people and contributing to food insecurity, poverty, and inequality. Climate change is increasing temperatures and disrupting rainfall patterns, increasing the frequency, severity, and duration of droughts in many regions across the...