In summary, the likelihood of drought is projected to increase in many regions over the 21st century  even with strong climate change mitigation, and more severely in the absence of this. Different forms of drought broadly show similar patterns of projected change in many regions , but the frequency of agricultural drought is projected to increase over wider areas than for meteorological drought . Clarity on the definition of drought is therefore important for informing decision-making. With the RCP6.0 and SSP2 scenarios, the global population exposed to extreme-to-exceptional terrestrial water storage drought is projected to increase from 3% to 8% over the 21st century.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report