Bad gas from perfectly good food [WFJ #80]

Is producing fuel from food waste an integral part of a more sustainable Somerset, or another example of greenwashing?

It can be difficult to miss, when driving or taking the train across the Somerset countryside – one or more great big green domed tanks, looking slightly alien-like – usually in the middle of someone’s farmland. 

These are anaerobic digesters (or ‘AD’ for short), pitched as what industry members call a ‘win-win-win-win’ scenario for farmers, the environm…