Actually a lot of progress has been made, except in China, which has increased emissions to the point of reversing all other progress globally. By comparison, US carbon has been going down since 2007, despite a growing population and economy. Per capita it's been declining for over four decades. China now emits more than the US and EU combined, despite having much, much less economic output.
Carbon emitted as a result of manufacturing should count toward the destination country, not the production country. China supplies the world a lot of goods. It doesn't seem appropriate to put the onus on China when the end result of that production run brings all that stuff over to another country.
Has anybody studied this yet? This point comes up every time this issue is discussed, but I don't remember ever seeing any effort into quantifying what the situation looks like from this perspective.