For the forthcoming book:
Paths Through the Green State: American Environmental Policymaking Beyond Gridlock, 1990-2006
Professor Sousa's co-author is Christopher McGrory Klyza, Stafford Professor of Political Science and Environmental Studies at Middlebury College.
Professors Sousa and Klyza have been given a contract for their book to be published as part of the MIT Press Series on American and Comparative Environmental Policy
Paths will come out in 2007; in the meantime, some draft excerpts can be found here.