Looking at the cows on his dairy farm in Devon, Winston Reed does not see what many environmentalists do: animals burping up vast quantities of methane, a greenhouse gas 21 times more potent than CO2. He is more concerned with what comes out of the animals’ other end – and it offers hope for the planet. As Reed says: “The poo from four cows can produce enough energy to heat and light a house for a year.”

Unlike the methane that cows and other ruminants exhale as their stomachs convert grass into milk, and which is believed to be responsible for up to a quarter of “manmade” methane emissions worldwide, the gas in their manure can be harnessed as a force for good. And the same goes for all other forms of organic waste that would otherwise rot in landfill sites.

Reed, 35, is seeking planning permission to build an energy centre on his farm, in a rural community on the outskirts of Tiverton, near Exeter, taking in manure from local farms and waste from local abattoirs and food processors. It would not be the first of its kind in the UK, but it would be by far the most ambitious – creating electricity to light 6,000 local houses and £700,000 worth of heat for local industries, including a sawmill plant making wood pellets for biomass boilers. Since Tiverton’s population is only 20,000, it will go a long way to making the town self-sufficient in energy, he says.

To read the full article on the Guardian Newspappers website, “click here”:http://www.guardian.co.uk/environment/2008/jul/30/biofuels.waste