China built a huge amount of infrastructure ranging from huge concrete cities to freeways and dams. This infrastructure uses a lot of steel and concrete. It i

China built a huge amount of infrastructure ranging from huge concrete cities to freeways and dams. This infrastructure uses a lot of steel and concrete. It is not just an input for export goods - they are places for people to live. Given that infrastructure building has set commodity prices for a decade, it wild be surprising if it wasn't the main part of thier emissions. We can't begrudge Chinese, Indian and African people a modern way of life. Building that stuff emissions carbon. Its a difficult problem. In a way trying to call a Chinese freeway an input emission for westbound exports is a moral cop-out.