The PalaeoArc is a network research programme aiming to further understand past and present environmental changes and processes in the Arctic. It is the successor of the previous network programmes of PONAM (Polar North Atlantic Margins), QUEEN (Quaternary Environment of the Eurasian North), APEX (Arctic Palaeoclimate and its Extremes) and, most recently, PAST Gateways (Palaeo-Arctic Spatial and Temporal Gateways).