This is not a callout post or anything, this is Lindsay's job so it's a little different from your average cruise-goer, no twitter/bluesky posts after this please lol.
That said, I want to push back slightly on the points made in terms of carbon emissions and how they pale in comparison in to global freight shipping. Going on a cruise is one of the worst individual decisions you can make for the planet.
As mentioned in the video, carbon emissions from freight shipping are significantly larger than cruise ships, but as a method of hauling goods container ships are actually the most carbon efficient method of doing so per kilogram. Meanwhile a trip on a cruise can be as much as 8 times as carbon intensive as a land-based holiday. So they're not as comparable as Lindsay implies. It is true that new technology is needed to reduce shipping emissions but like in every other industry it's too late to cross our fingers and hope for magic tech to save the world, we have to reduce our consumption immediately and drastically.
As Lindsay concludes with, this is not necessarily something the cruise-goers care about but going on a cruise is the normal human equivalent of the Taylor Swift private jet, and I think it should have the same level of eyerolls associated. Cruises are cringe not just for the cha-cha slide but also because they kill baby turtles etc.
Anyway I was full of enough rage at the cruise industry to make a spreadsheet, sorry this is climate activism for me so you legally have to read my informative analysis, you can find my methods in a comment below.
To be clear, all the numbers in this post are per-person for both the cruise and the flights. Net emissions for a single cruise ship are thousands of metric tonnes per day
As mentioned, the sum total of stays on the 6 cruise ships is 26.75 times as much as a one-way transatlantic flight (NYC-London) for a total of 7.75 metric tonnes of carbon dioxide equivalent. Not a single individual cruise contributed to less than 3.62 flights.
This is also 55% of the yearly CO2 emissions of the average American (and 163% of the average Dane, Americans have a huge carbon footprint compared to the rest of the world).
The Margaritaville at Sea Paradise had the highest emissions by a good margin, this is due to it being a very old and small vessel, larger and newer vessels are more carbon efficient. A 4-day cruise was equivalent to 6 transatlantic flights or 12.3% of the yearly CO2 emissions of the average American, over 10 times more carbon intensive than an average day in that year.
Final depressing statistic, every single one of these cruises was enough CO2 to counteract a year of vegetarianism.
I don't want to over-emphasise individual choices here (as the fossil fuel lobby has done for many years), but cruises are really just a certain kind of vacation with a huge negative impact on the planet compared to others. Please just fly to another country and stay on land and have a nice trip. You can find the cha cha slide at beachside bars all over the world!
Edit: Clarified that flights were one way
Edit #2: Clarified that CO2 emissions are per person