Research found that Carnival Cruise ship company alone is responsible for almost 10 times as much sulfur dioxide release as all 260 million of Europe's cars combined

So, next time someone talks shit about an old car being a gross polluter, ask them if they have taken a cruise ship... Carnival owns half the cruise ships.

https://www.euronews.com/2019/06/10/carnival-cruise-ships-produce-more-sulphur-oxide-than-all-europe-s-cars-analysis-claims