heat their homes. could it be the beginning of a poop revolution? the bbc s john kaye. reporter: out of one pipe and soon it will be coming back through another. let me explain. this is didcot sewage plant. and coming in here is the waste from thousands of local toilets. now, i know what you want to know. and the answer is yes, it does. sites like this normally clean the sewage and turn it into water. but here they re turning it into household gas. and it starts in what they call the digesting chambers. so that is full of human poo? full of the poo from 60,000 people who live in this region. we warm it up. it ferments just like food does inside your stomach, it creates a gas, a biogas, which we then store inside this gas holder here. it s a mixture of methane and carbon dioxide. it s a dirty gas. so we need to clean it up, which is why we put it into those towers over there, where you
might be hard to imagine, but they are using human waste to heat their homes. could it be the beginning of a poop revolution? the bbc s john kaye. reporter: out of one pipe and soon it will be coming back through another. let me explain. this is didcot sewage plant. and coming in here is the waste from thousands of local toilets. now, i know what you want to know. and the answer is yes, it does. sites like this normally clean the sewage and turn it into water. but here they re turning it into household gas. and it starts in what they call the digesting chambers. so that is full of human poo? full of the poo from 60,000 people who live in this region. we warm it up. it ferments just like food does inside your stomach, it creates a gas, a biogas, which we then store inside this gas holder here. it s a mixture of methane and carbon dioxide. it s a dirty gas. so we need to clean it up, which is why we put it into those