How can a small change to the temperature of ocean water have a big effect on a tropical depression?

Heat waves can be dangerous, causing illnesses such as heat cramps and heat stroke, or even death. Warmer temperatures can also lead to a chain reaction of other changes around the world. That's because increasing air temperature also affects the oceans, weather patterns, snow and ice, and plants and animals.

The process that fuels our sun and allows it to give off that much energy is called nuclear fusion.