While I understand there are efforts to get much better inventories of CO2 emissions from these nations, when I asked a US EPA representative if their efforts were going to also inventory SO2 emissions (amount and height of emission), I was told they were not.

FORBES: Climategate II: An Open Letter to the Director of the National Center for Atmospheric Research

The key point is that the amount of global warming depends on which emission path we choose.

ECONOMIST: Temperature control