Probably because not all of the CEOs all of the enormous corporations, or leaders of the top polluting nations, are in that top 10‰. 10% is just a nice number to use, and I expect that if they went with 15 or 20% then the corresponding amount of pollution they're responsible for would jump up significantly.

They are pulling up the entire average they have 40% of. They are emitting 6x more than the bottom 90% per capita, so that 6x figure should have been the metric to focus on

Jesus Christ. Do you know how much the US outputs compared to China and India? Educate yourself instead of following the group think. Seriously, the US is the only country on the planet that is actually going to achieve the Kyoto Agreement and we didn’t even fucking sign up for it. The US literally leads the entire fucking world in reduction of greenhouse gasses and development of green tech and you fucking clowns just sit here and bag on the rich… what a sad bunch of morons you are.