Hi, I am very new to conducting LCAs and I would very much appreciate your help! My study looks into biowaste management options (incineration, anaerobic codigestion), and I am using the latest Ecoinvent (v 3.4) dataset in openLCA 1.7.
I am using the dataset "treatment of biowaste, municipal incineration|biowaste|Cutoff, U" but I obtain very different results when I do a CML2001 impact analysis. Under Ecoinvent 3.4 LCIA methods, I get 0.040kgCO2eq/kg of biowaste for GWP100a. However, when I use OpenLCA methods, I get a very different result of 0.556kg Co2eq/ kg of biowaste. Is there a reason why there is such a difference and which one should I use?
Thank you very much!