Cristina Negri is the Director of the Environmental Science (EVS) Division overseeing environmental research conducted by approximately 160 staff and collaborators. Her current interests are in leading the development and execution of the Division’s strategic programmatic direction inclusive of a diverse research portfolio in environmental sciences.

Jiwen serves as the Deputy Division Director of the Environmental Science Division. She helps shape the division’s strategic plans, develop internal and external programs, and foster professional growth of staff. Her expertise and research span a diverse range of areas addressing critical environmental and climate-related challenges in aerosol-cloud interactions, extreme weather, as well as impacts of climate change, urbanization, and wildfires.

Nicki is the Associate Director for Operations for the multi-lab DOE Atmospheric Radiation Measurement (ARM) user facility.  She oversees facility operations for ARM’s six observatories, including facility analysis, observing networks, data discovery, instrument operations, and strategic planning. 

Dr. Rao Kotamarthi is a Senior Scientist in the Environmental Science Division and has a PhD from the University of Iowa.  Dr. Kotamarthi has nearly 30 years of experience in regional- and global-scale modeling of Air Quality and Atmospheric Composition, atmospheric aerosols, and regional scale climate change. He has authored over 150 journal articles and reports and is the author of a book titled ​‘Downscaling Techniques for High-Resolution Climate Projections: From Global Change to Local Impacts”. 

Scott is an atmospheric scientist and head of the Geospatial Computing, Innovations, and Sensing (GCIS) department in the Environmental Science Division at Argonne National Laboratory. He is a Senior Fellow at the Northwestern Argonne Institute of Science and Engineering (NAISE). Scott’s research is at the intersection of data informatics, edge computing, atmospheric science, and radar meteorology. He uses and develops open-source tools to aid the development of next-generation climate models.

Lee is a landscape ecologist and head of the Ecology, Natural Resources, and Managed Systems Department in the Environmental Science Division (EVS) at Argonne National Laboratory. His work focuses on evaluating the environmental impacts of energy decisions and identifying energy-ecological synergies. He is interested in research and applications in the following areas: terrestrial/landscape ecology, sustainable energy development, geospatial modeling; and ecological impact evaluations of energy development.  

Dr. Yan Feng is a Principal Atmospheric and Climate Scientist at Argonne. She also has a Scientist at Large appointment with Consortium for Advanced Science and Engineering at the University of Chicago, and a Graduate Faculty Scholar appointment at the Northern Illinois University. Yan currently serves as an Associate Editor for the Journal of Advances in Modeling Earth Systems (JAMES). Her research focuses on global and regional modeling of aerosols, clouds, and interactions with climate change, air pollution, and biogeochemical cycle.