My point is that we are actually under-counting our CO2 emissions (if we simply go by emissions per capita) because we consume more imported goods from other countries that have expended CO2 to produce them than we export.

And my point is we’re not necessarily under counting.

Doing online advertising produces much less CO2 than say running a steel mill.

Online advertising increases demand for goods and services in a directly measurable way and also directly consumes energy.