Prioritize cycling infrastructure and policy
Vancouver will not convince anyone of being the 'greenest' city without a huge modal shift towards cycling, walking, and public transit.
Cycling infrastructure is already improving (e.g., new Dunsmuir two-way bike lane), but policy needs to improve (e.g., a transportation hierarchy, with pedestrians followed by cyclists at the top).
Also, we will NEVER get the general population cycling daily without repealing mandatory helmet legislation. It just won't happen -- it's too inconvenient.