To further eliminate the differences in database coverage as causes for different climate change impacts, a product-by-product comparison for a subset of 50 chemicals from four distinct groups of chemicals has been performed as shown in figure . This comparison between ecoinvent and IDEA climate change impacts and their contributions from electricity, heat and other emissions reveals distinct patterns for different groups of chemicals. Also in this the plotting range have been removed from the calculation of the distribution patterns, but they are included in the calculation of median primary energy demands (horizontal bars). The dashed lines represent the primary energy demands for electricity and heat of the proxy data that are commonly used in the ecoinvent database (mean of the old and new versions). IDEA datasets with net heat or electricity outputs have been excluded as these outputs would be treated as allocatable co-products by ecoinvent.