Northside councillor Thomas Gould said it would have the triple effect of reducing emissions and congestion while giving back to the taxpayer.
Similar schemes are in place in Dunkirk, in France, Tallinn, in Estonia, and throughout Luxembourg - which became the first country in the world to make all its public transportation free of charge this summer. Beijing gives free bus travel to people who recycle plastic bottles, while Istanbul offers travel card top-ups to commuters who recycle waste.
Workers’ Party councillor Ted Tynan brought a motion to City Hall calling for free public transport earlier this year.