In April, the preeminent scientific body known as the Intergovernmental Panel on Climate Change (IPCC) released the contribution of Working Group III to the 5th Assessment Report on climate change with a focus on climate change mitigation, including transport and other sectoral policies. What is new for transport since the 4th Assessment Report was released seven years ago?
Quite a bit, it turns out. The 4th IPCC report strongly focused on fuel and vehicle technology substitution. Deep cuts in emissions would mainly be brought about by a switch from gasoline to biofuels and fuel cell cars. The 5th report’s messages are different and more in tune with the growing consensus around the need for new mobility patterns and a change in transport user behaviors: “When developing low-carbon transport systems, behavioral change and infrastructure investments are often as important as developing more efficient vehicle technologies and using low-carbon fuels,” say the authors of chapter 8 on transport. This is progress in my view, and the emphasis on different modes of transport (besides individual cars) is very much in line with the recent World Bank flagship report Turning the Right Corner.
But how do we get there?