David Lawrence is a Scientist III in NCAR's Earth System Laboratory. His research interests center around land surface processes and climate change with a particular emphasis on investigations into Arctic terrestrial climate system feedbacks, especially including the impact of projected permafrost degradation on carbon, water, and energy cycles. He is also interested in land-atmosphere interactions and how land-atmosphere interactions contribute to climate variability and change.He has been co-chair of the Community Earth System Model (CESM) Land Model Working Group for the past 8 years and is currently serving as a member of the CESM Scientific Steering Committee. David coordinated (and contributed to) the development of several recent versions of the Community Land Model including CLM3.5, CLM4, and CLM4.5. He is a topical editor of the journal Geoscientific Model Development, a co-chair of the Vulnerability of Permafrost Carbon RCN Model Integration group, and a co-lead of the Water and Energy group of the International Land Model Benchmarking project.