The National Science Foundation (NSF) awarded a $717,355 Project Grant to the George Washington University (GWU) Student Accounts Office / Third Party Division under the NSF Geosciences program (CFDA 47.050) to conduct collaborative research on socio-ecological systems transformation in river basins of the sub-Arctic under climate change. The 5-year research project, titled "Collaborative Research: Socio-Ecological Systems Transformation in River Basins of the Sub-Arctic under Climate Change (SESTRA) - Navigating the New Arctic (NNA)," aims to analyze the changing interactions between climate, water, and society in the Kuskokwim and Selenge River basins in Alaska and Mongolia, respectively. The interdisciplinary research will advance understanding of linked hydroclimatic and human processes in the Arctic by identifying and analyzing changes in hydroclimatological and socioeconomic systems, conducting community-engaged modeling, and exploring complex interactions and feedbacks to provide scenarios for future socio-ecological system changes and adaptation options.