[1
]Center
for Industrial Ecology, School of Forestry & Environmental Studies, Yale
University, 195 Prospect Street, New Haven, Connecticut 06520, United States
[2
]Interdepartmental
Centre for Industrial Research “Energy & Environment”, University
of Bologna, Via Angherà 22, Rimini, Italy
[3
]U.S. Geological
Survey, Reston, Virginia 20192, United States