(Reuters) – The Toronto Zoo has a solution to global warming: elephant dung.
Canada’s biggest zoo is inviting bids for a gasification plant that will turn its elephant, rhino and other large animal manure into clean electricity and heat.
“No other zoo in the world is doing this,” zoo conservation program head Dave Ireland said on Wednesday.
The zoo produces about 1,000 tonnes of manure and other organic waste each year. This will be fed into the biogas plant, to be built on land adjoining the zoo, where bacteria will munch through the waste and excrete methane gas.