EditorialThe icebreaker Edisto in a picture taken during Bernard Kalb's first overseas assignment in an undetermined location in Antarctica, on March 5, 1956. (Bernard Kalb/The New York Times)
EditorialHans Honold, who will be assigned to watch for polar bears, was wrapped in blankets, on Sept. 15, 2019, in Tromso, Norway, after spending four minutes in cold water during survival training. (Esther Horvath/The New York Times)