Rising surface salinity and declining sea ice: A new Southern Ocean state revealed by satellites - Alessandro Silvano; Aditya Narayanan; Rafael Catany; Estrella Olmedo; Verónica González‐Gambau; Antonio Turiel; Roberto Sabia; Matthew R. Mazloff; Theo Spira; F. Alexander Haumann; Alberto C. Naveira Garabato (Proceedings of the National Academy of Sciences, 2025)