Anomalous summertime CO2 sink in the subpolar Southern Ocean promoted by early 2021 sea ice retreat. - Naëck, Kirtana; Boutin, Jacqueline; Swart, Sebastiaan; du Plessis, Marcel; Merlivat, Liliane; Beaumont, Laurence; Lourenco, Antonio; d'Ovidio, Francesco; Rousselet, Louise; Ward, Brian; Sallée, Jean-Baptiste (Biogeosciences, 2025)