Question

Explain how heat can be a source of water pollution.
short paragraph

Answer 1

Heat becomes a form of water pollution—called thermal pollution—when human activities (like power plants, factories, or urban runoff) discharge warmer or cooler water into rivers, lakes, or oceans, raising local temperatures. Warmer water holds less dissolved oxygen, stresses or kills temperature-sensitive organisms, alters breeding and migration patterns, and can favor invasive species or harmful algal blooms that further degrade water quality. Even relatively small temperature shifts can disrupt aquatic ecosystems and food webs, so managing heat emissions is important for protecting water health.