I have a question would like to ask for your kind help, maybe I get it entirely wrong, so any guidance is highly appreciated!
I am trying on the PET Bottle case study provided by openLCA. While I tried to calculate the LCIA for the product system 'PET Bottle Usage (Opposite Direction Approach)' using IPCC GWP 100a LCIA method, I noticed that there is zero contribution from the process 'Waste incineration of plastics (Opposite Direction Approach)'.
I wonder why this can happen (or does that make sense in the openLCA software) because I expect that this waste treatment process will have some contribution in terms of CO2 eq.
I saw from the inventory list of the process 'Waste incineration of plastics (Opposite Direction Approach)' that there is CO2 emission to air in the output table.
Please correct me if I misunderstood the logic/concept or how openLCA interprets the result.
Thank you very much!!