1. Department of Chemical, Biochemical, and Environmental Engineering and Center for Urban Environmental Research and Education University of Maryland, Baltimore County MD Baltimore USA
2. Department of Physics, Astronomy, and Geosciences Towson University Towson MD USA
3. Department of Geology and Environmental Science University of Pittsburgh Pittsburgh PA USA
4. Department of Geosciences Colorado State University Fort Collins CO USA
5. Advanced Science Research Center at the Graduate Center and Brooklyn College Department of Earth and Environmental Sciences City University of New York NY New York USA
6. Cary Institute of Ecosystem Studies Millbrook NY USA
7. Department of Ecosystem Science and Management The Pennsylvania State University University Park PA USA