In his later years, Teller became especially known for his advocacy of controversial technological solutions to both military and civilian problems, including a plan to excavate an artificial harbor in Alaska using thermonuclear explosive in what was called Project Chariot.
I de senere år blev Teller specielt kendt for sit arbejde med kontroversielle teknologiske løsninger til både militære og civile problemer, heriblandt en plan om at lade en kunstig havn i Alaska udgrave ved hjælp af termonukleare sprængstoffer.