My colleague and faculty director, Dan Farber, described in an op-ed on CNN.com the multiple ways that we can clean our air, from the local to state to federal levels. Dan gives a nice shout-out to my book Railtown, using it to show how Los Angeles could implement more low-cost solutions to get residents to use transit over driving.

In addition to more public transit, Dan highlights electric vehicles, clean fleets such as cabs, and EPA regulation of power plants as necessary steps to make our air cleaner and improve public health and the climate as a result.