Really groovy global policy on Climate Change would be more clever and more accurate than assumptions on averages that were foundational to the hep cats who wrote the United Nations Framework Convention on Climate Change (UNFCCC) Kyoto Protocol.
Why keep up the narrative that there are “developing” nations and “developed” nations ? Some formerly “developing” nations have emissions profiles quite like some “developed” nations today.
Also, why are we taking national averages ? There is stratification of society : the urban and merchant classes in many countries have a much higher Carbon Dioxide emissions count than the poorest in society, even if the countries are wealthy on average.
The wealthy are high emitters, no matter what region of the world they come from.