The pollution that the article is talking about, sulfur dioxide, isn't a component of climate change and actually tends to cool the Earth down. The amount of c

The pollution that the article is talking about, sulfur dioxide, isn't a component of climate change and actually tends to cool the Earth down. The amount of carbon dioxide emitted by cruise ships is far lower than that emitted by cars and in terms of carbon emissions per kilometer traveled per passenger cruise ships are pretty clean compared to other forms of transportation.