MARYLAND - Transportation continues to be one of the leading sources of toxic soot and smog in Maryland. Today, the Union of Concerned Scientists and Sierra Club released reports outlining the hazards of transportation pollution and the steps needed…
Clean Transportation
Clean Transportation
Transportation is a major source of air pollution and has the largest, fastest-growing climate emissions in the US. We can tackle the climate crisis and clean up our air by shifting to pollution-free vehicles, accessible public transit, and making our communities more walkable, bikeable, and transit-friendly. No matter their zip code, race, income level, age, or any other factor people should be able to rely on clean and safe transportation. Join the Sierra Club’s Clean Transportation for All campaign in making that vision a reality!
Clean Transportation For All
The Sierra Club’s Clean Transportation For All (CTFA) campaign reduces the harmful environmental and public health impacts of transporting people and goods while expanding equitable transportation options.
Find Out MoreClean Vehicle Programs: State Tracker
Momentum is building! Several states across the country are moving forward with programs to deliver cleaner air to their residents and clean up polluting cars and trucks, including large pickup trucks, delivery trucks, and semi-trucks.
Find Out MoreCompact mixed-use communities promote riding transit, biking, walking, scooting, and carpooling.
Land Use & Walking/Biking
Sierra Club chapters nationwide are working with cities, regions, states, and transit agencies to increase investment in biking, pedestrian, and public transit programs. Together, we can pass transportation policies that encourage smart growth and discourage sprawl to allow people to sustainably access jobs, housing, education, healthcare, nature, and community.
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Press Releases
AUGUSTA, ME – The Department of Environmental Protection (DEP) will consider two new clean vehicle standards that will provide Mainers with cleaner air and greater access to zero-emission cars and trucks. Adopting the standards, known as the…
CA & NY – Ahead of Toyota’s Annual General Meeting (AGM) later this month, two of the nation’s largest pension systems – California Public Employees' Retirement System (CalPERS) and the Office of the New York City Comptroller – just voted…
WASHINGTON, DC -- This week, House Republicans voted to nullify the Biden-Harris Administration’s federal standard to reduce smog- and soot-forming pollution from heavy-duty vehicles through the Congressional Review Act (CRA).
DENVER, CO – Coloradans—who frequently endure unhealthy air pollution largely from gasoline-burning vehicles—stand to receive major jobs, health, and energy savings benefits if the state adopts a strong Colorado Clean Cars plan that would speed up…

