Historically this is absolutely correct.
Looking forward it is developing nations that will contribute to the growth in emissions as they pursue developed standards of living, and populations grow.
Since 1990 CO2 emissions per capita in India have increased 300% from 0.6 tons to 1.8 tons. China has increased 400% from 2 tons to 8 tons.
Emissions per capita in developed countries have fallen over the same period - some of this is no doubt due to off-shoring of manufactured goods, but evidences the solution to CO2 emissions is:
- developed high emissions countries need to modify behaviours
- developing countries need to modify aspirations to avoid progression to over consumption
Total emissions = population x emissions per capita. A very simple sum in which both components are variable and can be managed should the will exist.