comparison, the average climate change impact scores calculated with IDEA exceed the ecoinvent scores substantially, but not to the same extent for all groups. Among the polymers, for example, the ecoinvent polymers that are a direct conversion of PlasticsEurope data (e.g. polyamide 6 (PA6), poly(methyl methacrylate) (PMMA), general purpose polystyrene (GPPS), acrylonitrile butadiene styrene (ABS), and styrene-acrylonitrile (SAN)) match the corresponding IDEA datasets in climate change impact scores better than those that are connected to the chemical supply chains within ecoinvent (e.g. polyethylene 10 terephthalate (PET), ethylene-vinyl acetate (EVA) or polyvinyl chloride (PVC)).