Dublin has been ranked as the worst capital city in Europe for public transport.
The study by Greenpeace, ranks EU capitals based on affordability and simplicity in buying tickets.
Dublin scored just 36 out of 100 points and was the only city which doesn't have a long-term fixed-price ticket for all means of public transport.
Greenpeace is calling on all European governments to introduce affordable 'climate tickets' for public transport.
Greenpeace EU transport campaigner Lorelei Limousin said: “Affordable public transport is a necessity, but many governments treat it like a luxury good. Millions of people rely on buses, trams and trains to get to work and school, to meet their families and friends, to participate in society in a sustainable way. Governments must introduce simple and affordable ‘climate tickets’ for public transport, to cut people’s bills and to reduce the oil use driving our planet towards climate disaster.”