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Powertrain Efficiency Technologies to Reduce GHG Emissions from Mobile Sources

Anthropogenic activities, particularly the burning of fossil fuels, have changed the composition of the atmosphere in ways that threaten dramatic changes to the global climate. Signs of climate change are evident worldwide and additional changes will have serious impacts on our nation’s future. Carbon dioxide (CO2) is an important greenhouse gas (GHG) produced from fossil fuel combustion. Emissions from the transportation sector are a large and important source of GHGs, contributing about 33% of the CO2 emissions in the U.S. As such, controlling GHG emissions from the transportation sector is essential to the overall efforts to alleviate long-term impacts on the climate.

Detailed below are some of the powertrain efficiency technologies that have been commercialized or are being developed to reduce GHG emissions from mobile sources.

Powertrain Efficiency Technologies