English: "Cumulative emissions (a) and energy demand (b) between 2020 and 2050 is shown for the baseline case and each policy applied onto the baseline case, as well as the local transport policy for London and a combined case consisting of all policies acting together. Emission projections are compared with the Tyndall Centre’s estimate of the carbon budget (for well below 2 °C and pursuing 1.5 °C)46 multiplied by the historical percentage of London’s emissions from cars47 and the CCC’s cumulative emissions pathway for 1.5 °C for surface transport10 multiplied by the historic percentage of UK surface transport emissions arising from London cars (see Supplementary Note 1). Emissions and energy demand are categorised by their source; the fossil fuel energy and tailpipe emissions from ICEVs (black), the electricity consumed for driving EVs (blue), the well-to-tank emissions from fuels (grey), the embedded emissions and energy from EVs (red) and ICEVs (orange) and the emissions and energy from retrofitting ICEVs with electric engines (purple). Note: the Tyndall carbon budget is in units of MtCO2 and does not account for other greenhouse gases, so it is a slight underestimate of the entire CO2eq budget."