The case for climate action has neverbeen stronger. Around the world, climate change is puttingat risk the lives of millions of people as well asthreatening many coastal cities and endangering trillion ofdollars of investments in transport infrastructure andservices. The Twenty-First Conference of the Parties (COP21)to the United Nations Framework Convention on Climate Change(UNFCCC) will bring heads of state and ministers to Paris atthe end of November to reach a global climate agreement withfar-reaching implications for low-carbon andclimate-resilient growth. Transport is playing a greaterrole in COP21 than in past UNFCCC conferences as a criticalpart of the solution: a sector that can contribute to bothreducing greenhouse gas (GHG) emissions and building economywide resilience to the impacts of climate change. In view ofthe sector’s potential, the heavily debated transportquestion is how to sustainably meet the rising global demandfor greater interconnectedness and mobility. The World Bankand the seven other leading multilateral development bankshave joined forces with the Paris Process for Mobility andClimate (PPMC) and the rest of the transport community tocall for more action on transport and climate change.