And what about all the crap America imports from all over the world? (I use "America" as a shorthand for the entire developed world. We're all responsible)

I keep being told that America doing anything to reduce emissions is pointless "because China builds a new coal plant ever hour" or something factoid like that. But China does a substantial portion of the world's manufacturing. So if you're giving America's emissions a pass, you should give China a pass as well, right?

The USA has a massive global trade deficit....

One dollar of trade is not always the same amount of CO2.

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.