a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.
Cars Cars are giving off greenhouse gas every time you drive. And it is in a form of Co2. We should and need to cut back because it is already up to 7-10 tons every year.
Overall These things all correspond into the same thing. We need to look around us and realize that this world isn't gonna be here forever and we need to be better at trying to save it.