A new addition to the chemical data proxy approach in ecoinvent v3 is the nitrogen demand for blanketing . This nitrogen demand is derived from the captured nitrogen at the Gendorf site . As outlined above, however, the Gendorf site also produces liquid nitrogen as output, which has not been considered in the ecoinvent modeling. Hence, the nitrogen demand for blanketing is likely overestimated. In addition, this nitrogen demand has been modeled with a technosphere exchange of nitrogen, liquid; however, it is unnecessary to use liquid nitrogen for blanketing and the energy demands of nitrogen liquefaction are several times higher than those for producing nitrogen gas , which leads to an overestimation of environmental impacts.