Why is BMW focusing on carbon emissions in the full value chain? 2. Using the supporting spreadsheetLinks to an external site., calculate and compare the life cycle carbon emissions of an internal combustion engine (ICE) vehicle versus a battery electric vehicle (BEV). In the spreadsheet, choose assumptions that you think reflect economic reality. What conclusions do you reach? 3. How much do you trust the different categories of carbon emissions (Scope 1, scope 2, scope 3 supply chain, and scope 3 use-phase)? 4. How would you recommend BMW to communicate its sustainability strategy to its stakeholders