Gas-guzzling cars and trucks have defined life in the United States for more than a hundred years—and we’ve paid the price. Transportation is now a major cause of air pollution-related death and disease, and recently became the #1 source of heat-trapping emissions in the United States.

If we do nothing, we risk not only our own health, but the future habitability of the planet.

And now years of progress on fuel economy and investments in lowering tailpipe pollution are being undone, and we're running out of time. The best climate science suggests that we have until mid-century to dramatically clean up the transportation sector. In that time, we must transition away from oil, while deploying new technologies that cut pollution, ensure equitable access, and support our climate goals.

The choices we make now will live with us for generations. You can help.