1. Department of Environmental Science William Paterson University Wayne NJ USA
2. Tree Ring Laboratory Lamont‐Doherty Earth Observatory of Columbia University Palisades NY USA
3. Laboratory of Tree‐Ring Research School of Geography, Development, and Environment University of Arizona Tucson AZ USA
4. CREAF Barcelona Spain
5. ICREA Barcelona Spain
6. Department of Geography, Geomatics and Environment University of Toronto Mississauga Mississauga ON Canada
7. Department of Anthropology University of Toronto Mississauga Mississauga ON Canada
8. The College of Wooster Wooster OH USA
9. School of Earth and Environmental Sciences University of St Andrews St Andrews UK
10. Water and Environmental Research Center Institute of Northern Engineering University of Alaska Fairbanks AK USA
11. Cooperative Programs for the Advancement of Earth System Science University Corporation for Atmospheric Research Boulder CO USA
12. Department of Plant Sciences University of California CA Davis USA