Thermal pollution
"The excessive raising or lowering of water temperature above or below normal seasonal ranges in streams, lakes, or estuaries or oceans as the result of discharge of hot or cold effluents into such water." (EEA, 2022)
Sources
European Environmental Agency (EEA). "Water Glossary". Water and Marine Environment. (2022). Link: https://www.eea.europa.eu/themes/water/glossary