Bristol’s Bio Bus runs on faeces and household waste. Photograph: Ben Birchall/PA

A little over 2 years ago contributor Megan Madill wrote about one of the “Green Cities” of Europe, not to mention all the wonderful bike sharing (and bike friendly) initiatives worldwide.

But this news from the city of Bristol via the Guardian takes first prize. The innovation itself is a wonderful thing, but our applause actually goes more to the cheeky graphics.

UK’s first ‘poo bus’ hits the road

Britain’s first “poo bus”, which runs on human and household waste, goes into regular service this month.

Powered by biomethane gas, the Bio-Bus will use waste from more than 32,000 households along its 15-mile route.

The bus, which can seat up to 40 people, was unveiled last autumn. First is showing the bus in Bristol on Tuesday before it starts operating four days a week from 25 March.

If the scheme is successful, First will consider introducing more “poo buses”. The managing director, James Freeman, said: “Since its original unveiling last year, the Bio-Bus has generated worldwide attention and so it’s our great privilege to bring it to the city.