tl;dr - authors estimate that millionaires will account for >70% of the remaining carbon we can emit while still staying under 1.5 C. Among billionaires, yachts account for over 60% of their annual emissions.
Picture unrelated:
[Billionaire yacht ownership] implies a contribution to climate change that is up to 6500 times greater for these individuals than the global average of 4.5 t CO2 per capita and year, or up to 300,000 times greater than the contribution of the poorest, at 0.1 t CO2 per person and year
All that so they can go putting around the water
