Synchronous retreat of Thwaites and Pine Island glaciers in response to external forcings in the presatellite era. - Clark RW; Wellner JS; Hillenbrand CD; Totten RL; Smith JA; Miller LE; Larter RD; Hogan KA; Graham AGC; Nitsche FO; Lehrmann AA; Lepp AP; et al. (Proceedings of the National Academy of Sciences of the United States of America, 2024)