TS.B.4.6 Hydrological cycle changes have impacted food and energy production and increased the incidence of water-borne diseases. Climate-induced trends and extremes in the water cycle have impacted agricultural production positively and negatively, with negative impacts outweighing the positive ones . Droughts, floods and rainfall variability have contributed to reduced food availability and increased food prices, threatening food and nutrition security, and the livelihoods of millions globally , with the poor in parts of Asia, Africa and South and Central America being disproportionately affected . Drought years have reduced thermoelectric and hydropower production by around 4-5% compared to long-term average production since the 1980s , reducing economic growth in Africa and with billions in US dollars of existing and planned hydropower infrastructure assets in mountain regions worldwide and in Africa exposed to increasing hazards . Changes in temperature, precipitation and water-related disasters are linked to increased incidences of waterborne diseases such as cholera, especially in regions with limited access to safe water, sanitation and hygiene infrastructure . 
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report