One Billion Cars & Counting (NPR)

This piece by Daniel Sperling, aired on NPR Radio on January 15th, 2009, discussing the consequences of the doubling on the vehicles, which now stands at one billion, on the environment and sustainability.

Read the News Post or Listen on NPR

Daniel Sperling is a professor of civil engineering and environmental science and policy at the University of California, Davis and the founding director of University of California, Davis' Institute of Transportation Studies.

He co-authored (with Deborah Gordon) the book "Two Billion Cars: Driving Toward Sustainability"