Warming temperatures and extreme weather events can potentially impact water quality . Water quality can be compromised through algal blooms that affect the taste and odour of recreational and drinking water and can harbour toxins and pathogens . Warming directly affects thermal water regimes, promoting harmful algal blooms  . Additionally, permafrost degradation leads to an increased flux of contaminants . The increased meltwater from glaciers  releases deposited contaminants and reduces water quality downstream .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report