James Rattling Leaf, Sr. is coordinator of Climate Partnerships for the Great Plains Tribal Water Alliance and Principal, Rattling Leaf Consulting LLC in Black Hawk, South Dakota. A member of South Dakota's Rosebud Sioux tribe, James has served as a Visiting Collaborator, South Dakota School of Mines and Technology; Director, Geo-Spatial Applications Center, Sinte Gleska University; Board Member, Education Committee, American Geophysical Union (AGU); Fellow, International Indigenous Resource Management Institute, Denver; Cultural Advisory Board Member, Deep Underground Science and Engineering Lab; Board of Directors, South Dakota National Science Foundation EpSCOR; Member, NASA Space Grant Consortium EpSCOR Technical Advisory Committee; and Cultural Advisor, NOAA National Integrated Drought Information Systems (NIDIS). He is currently Chair, ESA Traditional Ecological Knowledge (TEK) Section. James received his B.A. in Lakota Studies from Sinte Gleska University (Rosebud Reservation, Mission, South Dakota).