Background and issues
The transport sector represents today 23% of all energy-related global emissions and curbing these sectoral emissions is essential to implement global pathways consistent with the “well below 2C” climate goal of the Paris Agreement. The analysis of sectoral transformations implied by current NDCs shows that the transport sector is one of those where the ambition is particularly insufficient in the light of the requirements of md-century Paris-compatible transformations.
Ambitious reductions of transport emissions require an alignment of national plans, global sectoral roadmaps and strategies of the private sector. Emission cuts will come from an in-depth assessment of country-specific technological, social and economic drivers of mobility and emissions.
Sectoral roadmaps, investigating the potential evolution of these drivers in a collective low-emission context, should serve as a guide to the evolution of the boundary conditions of the national analysis at a global sectoral level. And extensive engagement with stakeholders and experts of the sector, notably companies active in the sector, is a key necessary condition for the definition of relevant and implementable emissions objectives and associated strategies.
In 2017, research teams from France, Japan, Mexico and the United Kingdom began work on analysing the levers for decarbonation of passenger transport, constructed an innovative method for developing deep decarbonation trajectories for the sector by 2050 compatible with the Paris agreement and applied it in their four countries.
Since 2018, the methodological framework of the DDP Passenger Transport has been discussed within the research network of the DDP initiative and presented at various international working meetings. Among others, it has been used by other partners within the DDP LAC (Latin America and Caribbean) project and within the DDP BIICS project.
Meanwhile, since COP23 in Bonn and the Movin'On summit in 2018 in Montreal, the DDP initiative has been collaborating with four other international initiatives to inform decision-makers on aspects of sustainable transition in the passenger transport sector. All these initiatives make their tools available in the Transport Decarbonization Toolbox.
In 2018-2019, the French research team decided to develop a similar methodology for freight transport and to apply it to France.
The pathway design framework adapted to build freight scenarios and the first implementation example in France have been presented at COP25 in Madrid in 2019 and will be further discussed in 2020.