This got me to wondering how well per capita CO2 emissions predict per capita wealth. I used a lin/lin scale and focused in on the wealthy countries.
The answer: while per capita income above $15K predicts higher emissions than below $15K, above that threshhold the value of emissions as a predictor of wealth is very small. (Dot size is scaled to total population.)
There are a few outliers on the high sides, all small countries:
high income: Bermuda ($73.5K, 8.6T)
high emissions: Trinidad ($17.4 K, 32T), Aruba($26.4K, 32T), Bahrain($28.5K, 30T) Kuwait($44.4K, 36T)
high on both scales: Luxembourg ($72.7K, 24T)
Conclusion: at least a four-fold reduction in CO2 emissions in North America (with present day technology) is compatible with comparable levels of wealth and well-being.
Technical note: to restrict the focus of your Gapminder graph, click the little arrow at lower right on a live Gapminder session.