Dear colleagues, Please consider presenting your work and attending this workshop at INTERACT2025 to share your thoughts about this timely topic! A remote option is provided to make this international research forum more accessible. *Addressing Global HCI Challenges at the Time of Geopolitical Tensions through Planetary Thinking and Indigenous Methodologies* Workshop@INTERACT2025 https://ifip-idid.org/globalhci/ HCI researchers and practitioners witness an even more divided world in 2025 that manifests global inequalities and disparities, triggered by local politics and global and regional geopolitical tensions, and perpetuated by sociocultural structures. This workshop invites participants to reimagine a new world order of HCI at the time of geopolitical tensions with the emerging ontology of the planetary thinking. We aim to explore local design principles, rationales, and heuristics for global HCI design projects. It is our first step towards defining how planetary thinking can help scale up HCI design approaches to address global challenges and risks to nurture the well-being of diverse species for and with the planet that we live on. Our goal is to achieve technology diversity by including diverse local values and intellectual traditions in our design processes with an emic strategy inspired by indigenous design methodologies. For example, a business knowledge sharing system developed with participatory Ubuntu values in South Africa, or a Scandinavian minimalist HCI design of an energy-saving system. This full-day hybrid workshop is organized by IFIP TC13 WG13.8 – Interaction Design for International Development. Researchers and practitioners are invited to submit a position paper or a design case on the subject matter. The collection of accepted position papers and design cases will be shared one week before the workshop—extended versions of the workshop papers will be published by Springer in the LNCS series. To build a sustainable research community for advocating local research and mentoring junior scholars, we will host quarterly Zoom meetings and/or monthly speaker series to invite our participants or researchers in this area to share their work-in-progress or working papers. Detailed call: LinkedIn Page <https://www.linkedin.com/pulse/addressing-global-hci-challenges-time-geopolitical-azgkc/> *Submission Procedure* Please submit your position paper or design case of up to 4 pages in the Springer LNCS format to Huatong Sun at huatongs@gmail.com with a subject line INTERACT 25. - Deadline: June 1, 2025 - Decision of notification: June 10, 2025 - Workshop date: September 8 or 9, 2025, precise date TBC. *Organizers:* Huatong Sun, Jose Abdelnour Nocera, Torkil Clemmensen, and Sheethal Liz Tom Huatong Sun (she/her), Ph.D. *~~ On Sabbatical ~~* Professor, Digital and Social Media & Global Design School of Interdisciplinary Arts & Sciences Immediate Past Chair, Faculty Assembly 2024-2025 University of Washington Tacoma https://faculty.washington.edu/htsun/