About the Authors

William E. Rees


Affiliation University of British Columbia, School of Community and Regional Planning, Vancouver, British Columbia, Canada

Mathis Wackernagel

Affiliation Global Footprint Network, Oakland, California, United States of America

Competing Interests

We have an interest in this issue because we are the developers of Ecological Footprint accounting, which is being criticized in the manuscript to which Dr. Rees was invited to respond.

Author Contributions

The author(s) have made the following declarations about their contributions: Wrote the paper: WER MW.