Letters from the November 20, 2004, issue of Science News

When Earth got gas

Considering the controversy that Thomas Gold engendered when he first postulated abiogenic origins of earthly hydrocarbons, it’s odd you didn’t mention his name, in “Deep Squeeze: Experiments point to methane in Earth’s mantle” (SN: 9/25/04, p. 198: Deep Squeeze: Experiments point to methane in Earth’s mantle).