"If you save 1 million per year you only need to save 500 years."

Just tax these people.
The greenhouse gasses & pollution alone demand it, if societal or governance reasons alone aren't enough.

Leviathan is 111 meters long and the 50th largest yacht in the world. Onkenhout says the diesel-electric vessel is the "most comfortable yacht ever designed" by the company (you'd hope so!) and a feat of custom engineering.

You want cables? This baby's got 280 miles of them, powering everything from an on-board hospital (with live-in nurse), air conditioning, satellites, cavernous garages for tenders (small boats, not chicken) and submarines, and of course entertainment systems.

We're not done, not even close. Leviathan has two gyms, a 250 square meter beach club with a spa and bar, diving platforms, and whatever a "dedicated drinks pantry" is. The cherry on top: a room with 15 of the finest gaming PCs ever assembled.

Guests: 26
Cabins: 11
Crew: 37
Length: 111m
Beam: 17.8m
GT: 4,970 GT

pcgamer.com/gabe-newell-caps-off-steam-machine-week-by-taking-delivery-of-a-new-usd500-million-superyacht
boatinternational.com/oceanco-y722-superyacht-leviathan
yachtbuyer.com/oceanco-y722-364-oceanco#

... and it literally has exterior animated RGB lighting throughout the full length of the ship, bcs ofc it does.