This week the Provincial government and Metro Vancouver mayors said they’re out of ideas on how to expand the transit system. That’s a huge problem because the biggest thing that we can do locally to fight climate change is switch from private cars to public transit.
The best way to cause that shift is to put a transit pass in everyone’s hand, and make it affordable. But recent moves toward fare increases and fare gates mean that we’re actually increasing emissions.
Transportation is the biggest source of greenhouse gas emissions in Metro Vancouver. Of the just over 10 million tonnes of greenhouse gases that we emitted into the atmosphere in 2010, a majority (53% or 5.5 million tonnes) was caused by vehicles. 
In turn, almost all vehicular emissions were caused by passenger cars and other personal vehicles (about 4 million tonnes) or commercial vehicles (over 1 million tonnes).
TransLink estimates that switching from car to transit will reduce a person’s CO2 emissions over four-fold (from 224 grams of greenhouse gases per km travelled to only 50 grams). Indeed the reduction may be even more significant. Although 16% of commuters take public transit, they contribute only about 1% of vehicular emissions (0.07 out of the 5.5 million tonnes).