Figure 47.
Three different pathways for reducing CO2 emissions in the global aluminum production. The analysis reveals that the highest potential for improved sustainability lies in using renewable electricity (for the electrolysis). Data and image are taken from the International Aluminum Institute. Full information about the details of the calculations are in the original report.187 The figure is reproduced with permission from ref (187). Copyright 2021, The International Aluminum Institute. Gt, gigatonnes; CO2e, carbon dioxide emission equivalent.