Today in class we learned about global warming and tides. Global warming is when the earth releases energy and greenhouse gases in our atmosphere insulate this energy, thus warming the earth. Global cooling is where the earth absorbes more energy than it releases. This cools the earth because there is less energy for the greenhouse gases to capture. This is relevant to marine biology because warmer water forces some marine organisms to migrate. Global warming also increaes the temperature of the climate, and may change the behavior of some fish.