The PANAM UNSAT 2025 conference's main theme is "Unsaturated Soils for All Environments", and will include typical topics in unsaturated soils, but also aspires to include special topics on the role of unsaturated mechanics in cold regions geotechnique, the role of unsaturated soils in managing the impacts of climate change. The conference will also showcase practical applications of unsaturated soil theory in geotechnical, mining, geohazards, and other applied fields.