And that energy is derived, as Philip puts it, from "cow muck". A big six-cylinder engine running at 500rpm turns methane given off by decomposing cow manure into electricity. The process is ...

Experiments conducted at a farm in Berkshire found that zapping cow poo in this way reduced methane by 99 per cent while also reducing ammonia levels. Some scientists believe that the fault lies ...

Twelve times a day, a machine scrapes cow poop from the barn floor and sends it to an anaerobic digester, a sort of giant, mechanical stomach. Microbes are added, and the manure is heated.

A disease spread in dog poo could spell disaster for cattle near ... Infection causes miscarriages in pregnant cows and ...