why are we working towards becoming the Greenest City and why now? Vancouver residents have an ecological footprint three times larger than the Earth can sustain. he decisions we make every day about how we move around the city, what we buy or eat, and how we deal with our waste means that we currently use far more than our fair share of the Earth’s resources. Fortunately, there are many solutions that address climate change and other environmental challenges while creating green jobs, strengthening our community, increasing the livability of our city and improving the well-being of our citizens. In.