The impact of society on the environment.
Some people cut down trees and that make trees have less than before, so the world becomes hotter. Some of the factories create pollution that is very dangerous to people, for an example - is acid rain. Then in some country, they have many factories so they must use a lot more energy, so they developed themselves to have a factory that can create more energy - example, Japan, they make the nuclear factory and make nuclear power to make more energy for use. Nuclear power does not make a pollution to the air but another energy make so when people use the just Nuclear energy they won't make air pollution and this will make people that sick because of the air pollution decrease so people will more healthy and happier than before.