CO2 emissions occur, for example, due to the combustion of carbonaceous materials such as oil, coal and wood. Consequently, the quantity of CO2 emissions has risen tremendously since industrialisation. The originators of CO2 emissions are producers of electricity and heat as well as industry but also private households. With respect to the automotive industry, CO2 emissions can result from the production, use and disposal of vehicles. This is why the BMW Group is attempting to address all three issues in order to reduce CO2 emissions.