in order to create drivers for such more fundamental innovations including changes in consumer behaviour other policy approaches and tools are required for example in addition to improving the fuel efficiency of automobiles there is a need to support a range of other developments such as to stimulate new energy sources for private vehicles to facilitate the dissemination of social innovations such as car sharing or to develop public transportation systems into viable alternatives to cars while there is a need for dedicated scp policies it is also important to assess the implications of policies in other areas for scp objectives there is often a tension between sector policies for example industrial development agriculture or construction that generally aim to boost consumption and scp policies that seek to moderate consumption levels and shift consumption patterns