Clearly not all cow muck can be harvested. But if more food waste was collected, and more biogas plants built near dairy ...

There’s a moment Matt Jack describes that perfectly captures life on a mixed farm. One minute he’s calving a cow in his wellies and waterproofs – the next, he’s in the tractor cab sowing carrots, ...

Biogas technology, which captures methane from organic waste and converts it into usable energy, is "not novel or futuristic, ...