1. Department of City and Regional Planning and UNC Institute for the Environment; University of North Carolina at Chapel Hill; New East Building, Campus Box #3140 Chapel Hill NC 27599-3140 U.S.A.
2. Ecosystem Investment Partners; San Rafael CA 94901 U.S.A.
3. School of Forestry & Environmental Studies; Yale University; New Haven CT 06511 U.S.A.