In which country could you ride the first bio-bus?

The first bio-bus, frequently referred to as the "poo bus" in Britain can be found in Bristol, England. The bus, which seats up to 40 people, was unveiled in the autumn of 2015. It is fuelled by human and household waste. The fuel, generated through the treatment of this waste, allows the bus to travel up to 186 miles (over 299 kilometres) on one tank of gas, which takes the annual waste of around five people to produce. Waste is collected from more than 32,000 households along its 15-mile (just over 24 Kilometre) route.

Engineers believed the bus could provide a sustainable way of fuelling public transport while improving air quality. The gas is generated at Bristol sewage treatment works, run by GENeco a renewable energy company, and subsidiary of Wessex Water. It produces fewer emissions than traditional diesel engines and is both renewable and sustainable.

While the trial appeared to be a great success, plans to build an entire fleet of poo busses got flushed. Other cities have now added these busses on their current routes. The bio bus initiative was led by Wessex Water's renewable energy company GENeco to show how bio-methane gas, produced during the treatment of sewage and organic waste, could be used as a sustainable alternative to traditional fossil fuels to power vehicles and homes. The gas produced by Bristol sewage treatment works in Avonmouth, run by Wessex Water's , is now used by the national gas network.