"Oxfam identified 23 superyachts owned by 18 billionaires and estimates the average annual carbon footprint of each of these yachts to be 5,672 tons, which is more than three times the emissions of the billionaires' private jets," the study's executive summary reads. "This is equivalent to 860 years of emissions for the average person in the world."

https://www.oxfamamerica.org/explore/research-publications/carbon-inequality-kills/