James Rattling Leaf is a Research Associate at the Cooperative Institute for Research in Environmental Sciences at the University of Colorado-Boulder, as well as Co-Principal Investigator for the North Central Climate Adaptation Science Center. He specializes in developing programs that utilize the interface between Indigenous People’s Traditional Knowledge and Western Science. He has over 25 years’ experience serving as a cross cultural/broker resource to the federal government, higher education institutions and non-profits to develop and maintain positive working relationships with federally and non-federally recognized Indian tribes, tribal colleges and universities and tribal communities. He sees a greater vision of human knowledge that incorporates the many insights of human cultures and provides a context for our better understanding of the planet and the world. He is a founding member of the Group on Earth Observations (GEO) Indigenous Alliance that was established at GEO Week 2019 in Canberra, Australia to foster a continued, effective, respectful and reciprocal relationship with GEO and representatives of indigenous communities from around the world. He was born on the Pine Ridge Indian Reservation USA and is an enrolled member of the Rosebud Sioux Tribe. His higher education comes from Sinte Gleska University.