 . Extensive water extraction will augment pressures on water reserves, impacting the ecological status of rivers and ecosystems dependent on them . Socioeconomic conditions contributing to severe consequences are when more residents settle in drought-prone regions, or when the share of agriculture in GDP declines . For Europe, risks of water scarcity will be higher under SSP5 and SSP3 than under SSP1  . Transition to high risks is projected to occur below 2°℃ GWL in SEU and be associated with more persistent droughts , and at 2°C GWL to show a 54% increase of the population facing at least moderate levels of water shortage . This transition will happen at higher warming in WCE since risks are projected to increase less rapidly   . At 3ºC GWL and beyond, water scarcity will become much more widespread and severe in already water-scarce areas in SEU  and will expand to currently non-water-scarce regions in WCE  . Decrease in hydropower potential in SEU and WCE are expected beyond 3°GWL .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report