Cars cause Ocean pollution. Do you know how and why? Tailpipe emissions cause ocean pollution due to creating airborne deposits of nitrogen oxide. The oceans act as a sponge (scientists call it a sink) and they absorb excess carbon dioxide generated by the burning of fossil fuels. Impacts of the Oceans absorbing pollution include warming of waters and acidification of water as well. Some scientists theorize that the pollution is causing a rise in the sea levels and stronger hurricanes.