Of all forms of pollution contributing to climate change, the most notable is probably air pollution. As described in the Climate Change section of this site, most air pollution comes from large stationary resources such as power plants. Some of it also comes from transportation. The fumes emitted from these plants and vehicles clog the atmosphere and produce a greehouse effect, creating a kind of "blanket" around the Earth that absorbs the sun's warmth and warms the Earth. This leads to all kinds of problems including increased global temperatures, which melt ice caps and cause the sea level to rise - something which may result in major cities on the coast becoming submerged.