The Indo-Pacific Warm Pool (IPWP) is located at the cross-roads of global climate teleconnections. Throughout the Quaternary, ocean-atmosphere systems across tropical and high-latitude regions have linked the IPWP to global climate, particularly through monsoon dynamics and polar climate variability. These coupled systems influence both hydroclimate and ecosystems, with cascading eIects on human societies. This session invites research that explores the interplay of global climate systems in shaping variability within the IPWP, using multi-proxy (e.g., stable isotopes, pollen, biomarker) approaches, focusing on hydroclimate variability, temperature trends, vegetation changes, and human-environment interactions. We encourage high-resolution records from natural archives (e.g., speleothems, lake and marine sediments), and climate model simulations to investigate the timing, mechanisms, and consequences of climate and environmental transitions.