Sustainable Mobility: Renewable Hydrogen in the Transport Sector

Authors: Nicola De Blasio, Charles Hua and Alejandro Nuñez-Jimenez

June 2021


The transportation sector is the second-largest source of CO2 emissions, after electricity and heat generation, accounting for about 25 percent of global emissions.1 However, it is also one of the most challenging to decarbonize due to its distributed nature and the advantages of fossil fuels in terms of high energy densities, ease of transportation, and storage. Moreover, the degree of difficulty in decarbonizing varies significantly across the sector, making the challenge even more daunting.

So far, emissions reduction strategies have focused on improving vehicle and system-wide efficiencies, mode switching, and electrification. The latter is proving relatively easy for smaller vehicles that travel shorter distances and carry lighter loads. However, sector-wide decarbonization pathways will require a transition to low-carbon fuels and the deployment of enabling infrastructure to support innovation at scale.

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For Academic Citation: De Blasio, N., Hua, C., and Nunez-Jimenez, A. (2021),Sustainable Mobility: Renewable Hydrogen in the Transport Sector" Harvard University, June 2021. 10.13140/RG.2.2.15462.14409


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