The article says it produces 300% more CO2, so it's also roughly a 3-to-1 ratio of process energy in to fuel output. "fuel production by burning plastic on the

The article says it produces 300% more CO2, so it's also roughly a 3-to-1 ratio of process energy in to fuel output. "fuel production by burning plastic on the roof is four times more carbon intensive than producing fuel from crude oil in a refinery."