The transport sector accounted for nearly a quarter of global energy-related carbon dioxide emissions in 2011. With motorization expected to rapidly increase in the developing world, growing emissions from the transport sector could pose a serious challenge to global efforts to address climate change.

EMBARQ’s Sustainable Urban Transportation Fuels and Vehicles (SUTFV) program aims to take an unbiased approach to analyzing the impacts of different fuels and technologies for bus transit fleets.