The University of Arizona

Executive Committee | Global Change

Executive Committee

The GC-GIDP Executive Committee administrates the Global Change Ph.D. Minor program. The composition of the Executive Committee aims to reflect the breadth of backgrounds and units represented by the graduate students in the program and the membership of the entire Global Change Faculty. Any member of the Global Change Faculty is eligible to serve on the Executive Committee.

Kevin Anchukaitis

Dr. Kevin Anchukaitis serves as Chair of the Global Change GIDP, teaches the Global Change core coure, and facilitates the Global Change Toolkit core course. He is paleoclimatologist, dendrochronologist, and earth systems geographer specializing in the reconstruction and analysis of climate variability and change over the Common Era and the interaction between past climate and human society. His research uses an array of techniques to develop and interpret evidence for past, present, and future climate dynamics across a range of temporal and spatial scales, from local to global and interannual to millennial. These include dendroclimatology, climate field reconstruction and spatiotemporal data analysis, stable isotopes, proxy systems modeling, and the integration of paleoclimate data with General Circulation Modeling. 

Dr. Anchukaitis holds joint appointments in the School of Geography and Development, Department of Geosciences, the Graduate Interdisciplinary Program in Global Change, and the Laboratory of Tree Ring Research.

Michael A. Crimmins

Michael Crimmins is an associate professor in the Department of Soil, Water, & Environmental Science and a Climate Science Extension Specialist for University of Arizona Cooperative Extension. In his Extension position he serves as a liaison between the climate research community at the University of Arizona and the communities across Arizona by communicating research findings through education and outreach programs and identifying applied climate research needs. He is an applied climatologist with training in meteorology, climatology, and physical geography. His research interests focus on the application of climate science to support resource management decision making and planning. He is also a principal investigator with the Climate Assessment for the Southwest (NOAA-RISA program) and has several ongoing research and extension projects focusing on drought monitoring, climate impacts assessment, and the development of climate services. 

Kacey Ernst

My primary environmental research interests encompass how anthropogenic and natural changes to the environment influence the ecology and transmission of disease. Current projects focus specifically on malaria and dengue. We are examining the potential for dengue emergence in the U.S./ Mexico border region under current and future climatic conditions. I am also working with communities in Kenya to learn how different environments impact the use and acceptability of malaria interventions.

Donald A. Falk

Don Falk’s research focuses on fire history, fire ecology, dendroecology, and restoration ecology, including multi-scale studies of fire as an ecological and physical phenomenon. His publications include numerous journal articles and three books on conservation genetics and restoration of endangered species, including Restoring Diversity (Island Press, 1996) and the recently-released Foundations of Restoration Ecology, published in 2006 also by Island Press. He currently serves as associate editor for the Island Press-SER series, Science and Practice of Restoration Ecology, with James Aronson (CNRS, France). Professor Falk is a fellow of the American Association for the Advancement of Science and has received research support and fellowships from the National Science Foundation, Joint Fire Science Program, U.S. Forest Service, and the Collaborative Forest Restoration Program. He was appointed by Governor Janet Napolitano to serve on the Arizona Forest Health Advisory Council for a term ending in 2007.

Scott Saleska

Scott Saleska’s research focuses on how climate interacts with plant physiology, demography, and ecological processes to influence or control biogeochemical cycling from local to global scales. Dr. Saleska uses multidisciplinary approaches that combine classical techniques of field ecology and forestry with advanced technological methods and modeling to integrate biogeochemical processes to ecosystem scales. Dr. Saleska also is interested in the effect of human activities on these processes and on the sustainable functioning of the biosphere in general. Two current projects include using new technologies to measure whole-ecosystem isotopic exchange and understanding Amazon forest carbon exchange. His work in the Amazon is designed to build upon ongoing investigations of how forest demography and disturbance dynamics control carbon cycling in old-growth Amazon forest.

Edella Schlager

Dr. Edella Schlager's research focuses on public policy, political theory, and natural resource policy. Her research interests include institutional arrangements that communities create to govern their use of renewable natural resources, cooperation among resource users, and self-governing arrangements.

Connie Woodhouse


Connie Woodhouse's research concerns the climatology of western North America, including paleoclimatic reconstructions of past climate and hydrologic conditions from tree rings, the analysis of past and current climate, and circulation features that influence climate, particularly at decadal and longer time scales. Her work has ranged from the reconstruction and analysis of drought in the western Great Plain, to temperature variability over the past eight centuries in western North America, to the development of a network of streamflow reconstructions for major rivers in the Colorado, Platte, and Rio Grande river basins. A recent emphasis has been on applied research to assist water resource managers in using reconstructions of past hydroclimatic variability in drought planning and water resource management.