You also get algae blooms when the water is warmer, because algae grow faster in warmer water. This leads to less oxygen in the water and less mixing of water l

You also get algae blooms when the water is warmer, because algae grow faster in warmer water. This leads to less oxygen in the water and less mixing of water layers. Warmer water bodies often occur during drought and that often means more artificial irrigation... https://www.epa.gov/nutrientpollution/climate-change-and-harmful-algal-blooms https://www.epa.gov/nutrientpollution/climate-change-and-har...