The Sixth Assessment Report  Working Group I   concluded that anthropogenic climate change has increased atmospheric moisture and precipitation intensity  , increased terrestrial ET  and contributed to drying in dry summer climates including in the Mediterranean, southwestern Australia, southwestern South America, South Africa and western North America , and has caused earlier onset of snowmelt and increased melting of glaciers  since the mid-20th century. The report also stated with high confidence that the water cycle variability and extremes are projected to intensify, regardless of the mitigation policy. The share of the global population affected by water-related hazards and water availability issues is projected to increase with the intensification of water cycle variability and extremes. They concluded with high confidence that strong and rapid mitigation initiatives are
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report