Recent advances in the scientific understanding of urban traffic congestion have only strengthened the already solid case for congestion charges as an element of a successful urban transport policy. But examples of real-world congestion charging systems remain few and far between. What can be...

This paper reviews opportunities for mitigating greenhouse gas emissions from Argentina’s transport sector. It also identifies the main challenges for that objective, specifically in freight transport. Actions taken at different levels of government are assessed and the impact of policies...

This report examines the factors that have put Sweden at the forefront of decarbonisation of maritime transport, and how other countries could learn from this success story. It details Sweden's efforts to decarbonise its shipping industry and sheds light on remaining challenges and potential...

This report examines what would be needed to achieve zero CO2 emissions from international maritime transport by 2035. It assesses measures that can reduce shipping emissions effectively and describes possible decarbonisation pathways that use different combinations of these measures. In...

This report reviews port-based incentive schemes to reduce shipping emissions, such as environmentally differentiated port fees. Greenhouse gas emissions from shipping currently represent around 2.6% of total global emissions, but this share could more than triple by 2050. Ports have a crucial...