Statistically validating, contributing, reviewing or endorsing various parts of the website that deal with the economics, statistics, and growth rates are:

• Alan J. Truelove, Ph.D., statistician, retired professor, University of the District of Columbia
• Ben Zuckerman, Ph.D., professor of physics and astronomy, UCLA; member, UCLA Institute of the Environment
• David Simcox, director, Migration Demographics
• Dick Schneider, chair, Sierra Club Northern California Regional Sustainability Task Force
• Leon Bouvier, Ph.D., demographer, Old Dominion University (VA)
• Mark C. Thies, Ph.D., P.E., professor of chemical engineering, Clemson University
• Marshall Cohen, Ph.D., professor emeritus of astronomy, California Institute of Technology
• Paul Nachman, Ph.D., physicist
• Scott Briles, Ph.D., engineer, Los Alamos National Laboratory, University of California
• Steven A. Camarota, Ph.D., public policy analyst
• William E. Murray, Jr., Ph.D., physicist
• Michael J. Mueller, Ph.D., natural resource economist