How to end the American dependence on driving - Vox

To fight climate change, cities need to be designed with much more walking, biking, and public transit use in mind. Data from the EPA shows that the transportation sector is actually the biggest source of pollution in the US, and that light-duty vehicles (or passenger cars) are responsible for 58 percent of those emissions. Overall, the EPA’s research — and the 2021 study — reinforce the fact that the transportation systems of American cities over-rely on cars in ways that are not sustainable should the US actually want to approach its stated greenhouse gas reduction goal of 50 percent by 2030, a number it has to reach in order to limit global warming by 1.5 degrees Celsius or less.