MIT launches study on sustainable fuels for hard-to-decarbonize transport

MIT Energy Initiative on June 10 launched a two-year study on sustainable fuels for aviation, international shipping, long-haul trucking and freight rail, putting biofuels and e-fuels at the center of its next research push. The project, titled The future of fuels: Pathways to sustainable transportation, began in early 2026 and is aimed at transport modes where direct electrification remains difficult.

The work sits inside MIT’s Tough to Decarbonize Transportation program, a multidisciplinary effort under the Massachusetts Institute of Technology’s climate research agenda. MIT says the project is meant to identify economically viable technologies and policies for decarbonizing heavy-duty trucking, shipping and aviation, and that the path will require breakthroughs in fuel chemistry and production, vehicles, operations and policy. The institute also says the environmental and economic impacts have to be understood holistically, including full lifecycle analysis, if the sector is to reach a viable and equitable net-zero path by 2050. Randall Field, MITEI’s director of research, is associated with the project.

The timing lands as the sustainable fuels market remains far from scale. The International Air Transport Association said June 6 that global sustainable aviation fuel production is expected to reach about 2.4 million metric tons in 2026, equal to just 0.8% of total aviation fuel use. IATA put the cost to airlines at $4.3 billion, a reminder that even the strongest policy signals have not yet closed the gap between supply and demand in the aviation sector.

The policy backdrop is shifting at the same time. U.S. Agriculture Secretary Brooke Rollins said June 4 that USDA feedstock guidelines for implementing the 45Z clean fuel production credit are imminent and expected this summer, a development that could shape near-term biofuel economics and farm-level feedstock choices. The International Energy Agency projects that bioenergy, hydrogen and hydrogen-based fuels will rise from less than 1% of energy consumed today in shipping and aviation to almost 15% by 2030 and 80% by 2050, which underscores why MIT’s research priorities matter now: the institutions setting the technical frame are also helping define which low-carbon fuels can actually scale.