KR3: Risk of water scarcity will become high at 1.5℃ and very high at 3ºC GWL in Southern Europe , and increase from moderate to high in Western Central Europe . In Southern Europe, more than a third of the population will be exposed to water scarcity at 2℃ GWL; under 3ºC GWL, this risk will double, and significant economic losses in water- and energy-dependent sectors may arise . For Western Central and Southern Europe, and for many cities, the risk of water scarcity will be strongly increasing under 3ºC GWL. Adaptation becomes increasingly difficult at 3ºC GWL and above, due to geophysical and technological limits; hard limits are likely2 first reached in parts of Southern Europe .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report