Turns out there’s a lot of dog doo in San Francisco. Almost as much dog poop is collected as baby diapers from homes there. So, in line with the city’s efforts to recycle as much as possible, the company that collects San Francisco’s waste (Norcal Waste Systems) is looking to recycle dog poop too. Poop picked up in biodegradable bags and disposed of at Duboce Park will be the first to be recycled. It will then be mixed with food waste and put into an anaerobic digester. Bacteria will break down the waste and in turn emit methane which will be used for fuel. They hope to collect dog doo and cat poo from households eventually. (from The Economist.)