[angusb]

Plastics in landfill also break down to make methane. The carbon source in this case is fossil fuel.

Also, if the food gains the carbon as CO2 but releases it on decomposition as CH4, that’s a big increase in GHG potential, we want to avoid that.

Moreover it shouldn’t matter the original carbon source - if we have the opportunity to capture some methane from concentrated point source like a landfill we should be jumping at it. One of the easiest marginal tons of CO2e saved