The change in sea surface temperature refers to any fluctuation or variation in the average temperature of the topmost layer of ocean water. This can be due to natural factors such as changes in air and water currents, wind patterns, and solar radiation, or human-induced factors like pollution, overfishing, and climate change. Monitoring these changes is important for understanding how our oceans are responding to environmental pressures and for predicting future trends that could impact marine ecosystems, weather patterns, and coastal communities.