TS.B.4.1 Climate change has intensified the global hydrological cycle, causing several societal impacts, which are felt disproportionately by vulnerable people . Human-induced climate change has affected physical aspects of water security through increasing water scarcity and exposing more people to water-related extreme events like floods and droughts, thereby exacerbating existing water-related vulnerabilities caused by other socioeconomic factors . Many of these changes in water availability and water-related hazards can be directly attributed to anthropogenic climate change . Water insecurity disproportionately impacts the poor, women, children, Indigenous Peoples and the elderly in low-income countries  and specific marginal geographies . Water insecurity can contribute to social unrest in regions where inequality is high and water governance and institutions are weak .  
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report