Shaping Climate Change Policy
- ESRI Studies Series on the Environment
Lisa Ryan and Hal Turton
12. Implications for policymaking Over the last 30 years transport, in particular road transport, has been responsible for an increasing share of energy consumption and associated greenhouse gas emissions. The scenario described in Chapter 6 illustrates how this trend can be expected to continue if no intervention is made to address externalities in market operation, leading to an unsustainable transport system. A sustainable transport system, on the other hand, is more consistent with the scenario presented in Chapter 5, in which greenhouse gas emissions from transport in 2100 are roughly equal to or less than greenhouse gas emissions in 2000. One of the challenges to realizing a sustainable transport system incorporated in the analysis presented earlier in Chapters 5 and 6 is that achieving other goals of sustainable development, such as economic development and more income equality between world regions, is likely to stimulate today’s developing regions to follow a similar path of development to that followed in today’s developed regions, leading to high levels of demand for private mobility. This presents not only challenges, but also opportunities for sustainable development. The previous chapter has summarized a number of well understood, technically viable alternative motor vehicle technologies at or near market standard that have the potential to alleviate some of the environmental impacts concomitant with the increase in road transport envisaged in the scenarios presented in earlier chapters. However, as discussed brieﬂy in Chapter 11, the introduction of technologies and energy carriers that are not compatible with the dominating...
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