L. John Fry: Methane Digester and Methane Fuel Innovator

An extended interview with L. John Fry, who as a pig farmer in South Africa in the late 1950s/early 1960s developed his own anaerobic methane digester technology to generate methane fuel from organic waste. Originally published as "L. John Fry: Methane Gas Guru" in the September/October 1973 issue of MOTHER EARTH NEWS.

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