In 2018, researchers at the University of Arizona received more than $10 million in active grants related to environmental issues affecting Indian Country.  For example, in the College of Agriculture and Life Sciences, Dr. Raina Maier received more than $2.6 million (2017-2020) to investigate the human and environmental risks associated with metal (hardrock) mining in arid environments and to develop innovative remediation technologies to limit these risks in Tohono O'odham Nation and Navajo Nation.

Thomas Swetnam, Regent's Professor Emeritus, Laboratory of Tree-Ring Research, conducts research in forest disturbance history and forest ecology. He received funding from the Navajo Nation to study climate drivers of tree growth across Navajo forest lands.