I have been in the same situation. It is not explained in the process why there are foreground impacts, as one might expect.
E.g., soybean production has a large climate change impact, but not from background processes. One has to deduce oneself that the reason is land transformation and soil disturbance - a possible source of mistakes.
Perhaps you can see from the Inventory results what the burden is caused by.
I suppose the problem for us who want to understand and interpret things is that the process is not described other than by the process name or element.