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.

Julia E. Cole

Dr. Julia Cole serves as Chair of the Global Change GIDP, teaches the Global Change core coure, and facilitates the Global Change Toolkit core course. Her research centers on expanding our view of recent climate variability, using geological and biological proxies for climate along with instrumental records and climate models. Common themes include the development of geochemical records from long-lived corals and sediments, the variability and impacts of large-scale climate systems throughout the tropical oceans, and stable isotopes in the hydrologic cycle.

J.E. de Steiguer

Dr. Ed de Steiguer specializes in natural resource policy and planning on public lands. He has expertise in the use of economic and quantitative methods for the evaluation of natural resource projects and policies. His current research includes integrated watershed planning, meta-analysis of rangeland water yield experiments, analysis of global change policy and carbon emissions trading. His teaching includes courses in natural resource economics, planning and policy.

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.

David Breshears

Dr. Dave Breshears’ research focuses on the ecohydrology of drylands, including emphasis on the grassland-forest continuum (gradients of woody plant coverage that include shrublands, savannas, and woodlands, as well as grasslands and forests); wind- and water-driven erosion and associated transport; and especially drought-induced tree mortality as affected by warmer temperatures accompanying climate change.  Through this work he strives to enable improved decision making and management regarding issues of land use, pollution, and global change.

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.

Francina Dominguez

Dr. Francina Dominguez  is a hydroclimatologist whose work is focused on future climate scenarios for the Southwestern United States and how these will impact the hydrology of the region. She uses both statistical methods and the regional climate model WRF to downscale future climate projections from global coupled climate models to the regional scale. She also has great interest in land-atmosphere interactions, particularly the contribution of local evapotranspiration to precipitation within a region, more commonly referred to as precipitation recycling. 

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.