Transportation contributes approximately one-third of all U.S. carbon dioxide emissions, and must be a prime target for major greenhouse gas reductions.
Global warming emissions from the transportation sector can be reduced by increasing the production and use of clean, highly efficient vehicles powered by sustainable low carbon fuels and electricity, and by better designing communities to include accessible and convenient alternatives to driving. The Sierra Club is working to achieve three primary outcomes in this initiative
Clean and efficient vehicles: A fleet-wide new vehicle fuel economy average of at least 60 mpg by 2025 through a combination of state and federal standards and a shift to vehicle electrification.
Lower-carbon fuels: Reduce the carbon content of the fuels used for transportation by 15% below the 2005 level by 2030.
A 21st-Century Transportation System: Reducing vehicle miles traveled per person by increasing public transit use, fostering compact communities with transportation choices (rail, bus, walking, biking), and by cutting the number of car trips taken.
