1. University of California, Earth and Planetary Sciences, Santa Cruz, California, USA..
2. Aarhus University, Department of Geosciences, Aarhus Denmark..
3. Sorbonne Universités, UMR 7619 METIS, UPMC Univ Paris 06, Paris, France..
4. University of Wisconsin, Center for Limnology, Madison, Wisconsin, USA..
5. Middlebury College, Department of Biology, Middlebury, Vermont, USA..
6. Dartmouth College, Environmental Studies Program, Hanover, New Hampshire, USA..
7. Louisiana State University, Department of Geology and Geophysics, Baton Rouge, Louisiana, USA..