With all the bio-tech companies in town, we really should be pressing Metro to collab for projects like this!
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http://www.bbc.com/news/uk-england-bristol-30115137The 40-seat "Bio-Bus" runs on biomethane gas generated through the treatment of sewage and food waste.
The eco-friendly vehicle can travel up to 300km (186 miles) on one tank of gas, which takes the annual waste of about five people to produce.