This interview was conducted first solely with Terry Hughes, then a brief segment with both Hughes and George Denton, and finally a segment with only Denton. It is part of a series of interviews done documenting the history of scientific work on the West Antarctic Ice Sheet (WAIS), and it concentrates primarily on Hughes’s career. It briefly covers his upbringing in South Dakota and undergraduate education in metallurgy at the South Dakota School of Mines and Technology, and discusses his introduction into glaciology through Johannes Weertman, while doing graduate work in metallurgy at Northwestern University. The interview moves on to field work in Antarctica as a research associate under Colin Bull, subsequent employment at the Institute of Polar Studies at The Ohio State University, and production of his ISCAP Bulletins outlining the possibility that WAIS might disintegrate. Hughes’s move to the University of Maine as part of the CLIMAP project and his association with Denton and Hal Borns, are discussed. There is a focus on Hughes and Denton’s identification in The Last Great Ice Sheets of marine portions of ice sheets as playing a crucial role in the destruction of past ice sheets, as well as their identification of Pine Island and Thwaites Glaciers as a potential outlet for rapid ice loss from WAIS. There is also discussion of early attention to the WAIS disintegration problem circa 1980 and Hughes’s distance from subsequent research on ice streams. Denton describes field work in reconstructing past climate conditions, including the contributions of John Mercer.
