Global warming is not good. Its ruining the earth its pretty much human pollution from to much carbon dioxide. Global warming usually comes from the gas stations and other things like cars, factories, and much more. One day we will wake up and realize that were killing mother earth and one day there will be no earth. We have already seen causes from this pollution there's been a huge climate change around the world some places have more snow some places have not enough snow. The point is we need to think of better ways to do things other wise there will be no earth no life no nature.