Global warming causes many bad things to happen on our planet. One of the things that gloal warming is causing right now is the depletion of the ozone layer. This ozone layer depletion is allowing more and more of the sun’s harmful rays to come into contact with Earth’s life forms. This can cause an increase in skin cancer. Because of the fact that these rays are coming into the Earth, it also is causing the water temperatures to rise, and is thus melting glaciers that have been on our planet for centuries. This glacial melting is causing sea levels to rapidly increase, which will eventually cause entire coastal regions and low lying regions to become flooded out. The melting of glaciers is also causing artic wildlife such as polar bears and penguins to become extinct, because they are drowning due to the lack of glaciers.