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The Carbon Dioxide-Equivalent Benefits of Reducing Black Carbon Emissions from U.S. Class 8 Trucks

Debates over climate change have shifted from scientific evidence of anthropogenic contribution to the greenhouse effect to the development of strategies to mitigate the impacts of global warming.

One strategy that has yet to be fully explored is the reduction of black carbon particles. Diesel engines represent a significant, controllable source of black carbon. Targeting these emissions offers a supplemental and parallel strategy to pursue carbon dioxide (CO2) reductions with the advantage of a much faster temperature response and the additional benefit of health risk reductions. As part of an integrated multi-prong strategy, reducing black carbon can provide net cooling benefits in the near term while carbon dioxide reduction strategies and technologies are developed and implemented.

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