| Abbott, Joshua | 
Arizona State University | 
| Abdi, Abdulhakim | 
Lund University, Sweden | 
| Ablan, Magdiel | 
University of Los Andes in Mérida, Venezuela | 
| Acevedo, Miguel | 
University of North Texas | 
| Acheson, James | 
University of Maine | 
| Addis, Piero | 
University of Cagliari | 
| Adler, Carolina | 
Swiss Federal Institute of Technology Zurich | 
| Agar, Michael | 
University of Maryland | 
| Agarwal, Siddhartha | 
Missouri University of Science and Technology | 
| Ager, Alan | 
U.S. Forest Service, Western Wildland Environmental Threat Assessment Center | 
| Agrawal, Arun | 
University of Michigan | 
| Ahmed, Saleh | 
Utah State University | 
| Ahmed, Selena | 
Montana State University | 
| Aide, T. Mitchell | 
University of Puerto Rico-Rio Piedras | 
| Aistrup, Joseph | 
Kansas State University | 
| Aitken, Stuart | 
San Diego State University | 
| Akamani, Kofi | 
Southern Illinois University | 
| Alagarswamy, Gopal | 
Michigan State University | 
| Alam, Mahbubul | 
Kochi University | 
| Alam, Mahbubul | 
Ehime University | 
| Albayrak, Derya | 
Marmara Üniversitesi | 
| Albers, Heidi | 
Oregon State University | 
| Albert, Christian | 
Leibniz University of Hannover, Germany | 
| Alberti, Marina | 
University of Washington | 
| Albiach Branco, Evandro | 
University of São Paulo | 
| Alcock, Frank | 
New College of Florida | 
| Aldwaik, Safaa | 
Clark University | 
| Alejandro N. Flores | 
Boise State University | 
| Alemu, Henok | 
South Dakota State University | 
| Alencar, Ane | 
Amazon Environmental Research Institute | 
| Alessa, Lilian | 
University of Alaska-Anchorage | 
| Alexander, Kathleen | 
Virginia Tech | 
| Alexander, Steven | 
Environmental Change & Governance Group (University of Waterloo), Resilience Design Group (Antioch University New England) | 
| Alexandre, Nikola | 
Vassar College | 
| Ali, Abdullahi Hussein | 
University of Wyoming | 
| Allaire, Maura | 
University of North Carolina | 
| Allan, Brian | 
University of Illinois at Urbana-Champaign | 
| Allegretti, Arren Mendezona | 
Colorado State University | 
| Allen, Andrea | 
Michigan State University | 
| Allen, Craig | 
USGS Fort Collins Science Center | 
| Allen, Eowyn | 
Arizona State University | 
| Allington, Ginger | 
Missouri Botanical Garden | 
| Altman, Irit | 
University of New Hampshire | 
| Altunbas, Derya | 
Canakkale Onsekiz Mart University | 
| Amacher, Gregory | 
Virginia Tech | 
| Ambinakudige, Shrinidhi | 
Mississippi State University | 
| Amelung, Wulf | 
University of Bonn | 
| Amudavi, David M. | 
Egerton University, Kenya and Cornell University | 
| An, Li | 
San Diego State University | 
| Anand, Madhur | 
University of Guelph | 
| Anchukaitis, Kevin | 
Lamont-Doherty Earth Observatory, Columbia University | 
| Andelman, Sandy J. | 
Conservation International | 
| Anderies, J. Martin | 
Arizona State University | 
| Anderson, Christopher B. | 
Dept. of Forest Resources & Environmental Conservation, Virginia Tech University | 
| Anderson, James J. | 
University of Washington | 
| Anderson, Patricia | 
University of Washington | 
| Anderson, Shelby | 
Portland State University | 
| Anderson-Teixeira, Kristina | 
University of Illinois at Urbana-Champaign | 
| Andersson, Krister | 
University of Colorado at Boulder | 
| Andrade, Riley | 
Arizona State University | 
| Andresen, Jeffrey | 
Michigan State University | 
| Angelsen, Arild | 
Norwegian University of Life Sciences | 
| Angelstam, Per | 
Swedish University of Agricultural Sciences | 
| Aragón-Moreno, Alejandro Antonio | 
El Colegio de la Frontera Sur | 
| Aranda, Esther | 
George Washington University | 
| Arcese, Peter | 
University of British Columbia | 
| Archer, David | 
University of Chicago | 
| Arlinghaus, Robert | 
Leibniz Institute of Freshwater Ecology and Inland Fisheries | 
| Armstrong, Andrea | 
Utah State University | 
| Armsworth, Paul R. | 
University of Tennessee-Knoxville | 
| Arnason, Ragnar | 
University of Iceland | 
| Arodudu, Oludunsin Tunrayo | 
Leibniz-Centre for Agricultural Landscape Research (ZALF) | 
| Arora, Poonam | 
Manhattan College | 
| Arrowsmith, J. Ramon | 
Arizona State University | 
| Asbjornsen, Heidi | 
University of New Hampshire | 
| Ashton, Andrew | 
Woods Hole Oceanographic Institution | 
| Ashton, Peter S. | 
Harvard University | 
| Aslan, Clare | 
Northern Arizona University | 
| Asokan, Vivek Anand | 
University of Tokyo | 
| Athayde, Simone | 
University of Florida | 
| Atkinson-Palombo, Carol | 
University of Connecticut | 
| Attari, Shahzeen | 
Indiana University | 
| Avtar, Ram | 
Jawaharlal Nehru University | 
| Axel, Anne | 
University of Michigan | 
| Axelrod, Mark | 
Michigan State University | 
| Ayadi, Deep Prakash | 
Himalayan Climate Initiative | 
| Ayala-Orozco, Bárbara | 
University of California-Santa Cruz | 
| Ayotunde, Titilayo | 
Obafemi Awolowo University |