America’s car, truck, and train wheels keep turning, while planes and boats take to the skies and oceans, releasing 1.5 billion tons of greenhouse gas emissions into the atmosphere every year.

Breakthroughs from the U.S. Department of Energy Co-Optimization of Fuels & Engines (Co-Optima) initiative could make it possible to more rapidly cut emissions, reduce dependence on international petroleum, and contribute to ambitious national goals to slow global warming on the land, in the air, and across the water. Findings from the six-year collaborative undertaking are now available in a recently released report.

Top researchers from national labs across the country set out to give American industry and policymakers the scientific knowledge needed to decide which new fuel-engine combinations for cars and trucks could most realistically benefit drivers, businesses, and the environment. Efficient pollution-reducing fuels and engine technologies identified by Co-Optima researchers for use in on-road vehicles may also help cut pollution from marine, rail, off-road, and airplane engines.

The U.S. Department of Energy Bioenergy Technologies Office (BETO) and Vehicle Technologies Office jointly sponsored Co-Optima. Partners included nine national laboratories, along with more than 35 industry and university partners.

Get more details on Co-Optima findings, read the full report, and learn about the initiative.

BETO supports research, development, and demonstration to enable the sustainable use of domestic biomass and waste resources for the production of biofuels and bioproducts. Learn more at energy.gov/eere/bioenergy.

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