Imagine if you could power your kettle using the energy generated from the vegetable cuttings quietly breaking down in your kitchen’s compost bin. That reality might not be so far off with the growth ...

LAUREL McFADDEN struck a match and held it up to a nozzle on a giant tank. A small blue flame flickered into life, indicating that the mixture of mud, ground-up kitchen scraps and water inside the ...

Probably most people know that when organic matter such as kitchen waste rots, it can produce flammable methane. As a source of free energy it’s attractive, but making a biogas plant sounds difficult, ...