Britain’s first bus to be powered entirely by human and food waste went into service Thursday.
The environment-friendly vehicle can travel up to 186 miles on one tank of biomethane gas, which is produced from the annual sewage and food waste of about five people.
Engineers hope the bus will play an important role in improving urban air quality and in providing a sustainable way of fuelling public transport.
The Bio-Bus seats 40 people and will be a shuttle between Bristol Airport and Bath in South West England.
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