About the Authors
Department of Water Engineering and Management, University of Twente, Enschede, The Netherlands
Water Footprint Network, Enschede, The Netherlands
World Wide Fund-United Kingdom, Godalming, Surrey, United Kingdom
The Nature Conservancy, Charlottesville, Virginia, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: AYH MMM. Performed the experiments: AYH MMM. Analyzed the data: AYH MMM. Wrote the paper: AYH MMM AKC REM BDR.