Please stop to think when you read such things on Twitter or wherever. Here's what you should think: If a few map to all the cars in the world, then one really

Please stop to think when you read such things on Twitter or wherever. Here's what you should think: If a few map to all the cars in the world, then one really big vessel maps to the cars in Europe, perhaps? That fuel was chosen because it's cheap and a tankful can propel a giant loaded ship from Shanghai to Rotterdam, and that tank is small enough to leave most of the ship's space for payload. Is it plausible that something that fits in one tank can pollute as much as all the cars in Europe? Or is there something fishy about the computation or comparison?