Carl Bernacchi is a research scientist with the U.S. Department of Agriculture and an associate professor in the department of Plant Biology at the University of Illinois Urbana Champaign. His research addresses key issues related to ecological and environmental plant physiology, with a specific focus on the environmental impacts of land use change and responses of vegetation to climate change over a wide range of spatial and temporal scales. His research utilizes a range of techniques includes gas exchange, mechanistic and biophysical modelling, and remote/proximal sensing of carbon, water, and energy dynamics ranging from plant organ to regional scales. His teaching focuses on environmental physiology and photosynthesis. He also serves on the editorial board for three journals and has recently led the development of an Ecological and Environmental Plant Physiology section of the American Society of Plant Biologists.