The theme of the 16th ICRSS is Convergence at the Poles – Addressing urgent research questions and management needs through remote sensing in the Arctic and Antarctic. This symposium deals specifically with remote sensing applications in the polar environments, both Arctic and Antarctic. Earth’s Polar Regions feature cold-climate environments characterized by unique landscapes, biota, and processes. Many of these features and dynamics are cryosphere-driven and either are already subject to or have the potential for fundamental and rapid changes in a warming world. Earth observation technologies provide crucial tools to understand and quantify these changes.