Cities across both the United States and the EU are investing in numerous strategies to reduce carbon emissions from transportation.

Greenhouse Gas (GHG) emissions caused by truck transport have long been left unregulated both in the United States and the European Union, but recent U.S. measures are challenging EU lawmakers.

Carbon dioxide emissions from international aviation and maritime transport account for 2 and 2.7 percent of overall global emissions respectively, and are rapidly increasing.

Transportation greenhouse gas emissions represent a common challenge to the United States and European Union in transitioning to a low-carbon economy.