Climate change is a worldwide phenomenon resulting in the heating of the earth. It is caused by Carbon Dioxide penetrating and depleting the Ozone layer. There are many negative effects of this change. Firstly (and most obviously) the temperature outside will get warmer. Secondly, the heat causes the polar ice caps to melt. This would raise the sea level, potentially submerging low islands. The change in temperature causes an imbalance in ecosystems, and species go extinct. Next, the species that ate the last species goes extinct, and so on. Obviously, it is very important that we do everything we can to stop it.