While the governments are “going green”, public transit is struggling for air. It is, however, at the heart of a true sustainable development strategy. In fact, for each kilometre travelled, a transit user causes four times less air pollution, consumes five times less energy and uses twenty times less space than a car driver. All these conservation savings represent gains of several million dollars to add to the revenues of more than $937 million that public transit generates in the Montréal area. These arguments demonstrate, without a doubt, that public transit is a powerful engine of economic development and that any investments made will benefit the entire community.