Why was Richard E. Byrd’s time alone at Bolling Advance Base controversial?

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Richard E. Byrd stands on a ship deck in heavy fur clothing and a leather cap, holding a sundial compass during an Antarctic expedition. — Richard E. Byrd Richard E. Byrd.

Richard E. Byrd’s five-month stay at the Bolling Advance Base during the winter of 1934 is considered his most controversial exploit because he was ultimately rescued in a "desperately sick condition," suffering from frostbite and carbon monoxide poisoning.1

While Byrd intended to conduct scientific observations while isolated 123 miles south of Little America, the extreme conditions—with temperatures ranging between −58° and −76° F (−50° and −60° C)—led to a life-threatening situation that necessitated his emergency extraction.1