Operating energy vs. materials
More than three-quarters of the ecological footprint of Vancouver buildings is a result of operating energy.
While material choices for buildings are significant, the impact of these materials are amortized over the entire lifespan of the building. Therefore, their overall impact compared to fueland electricity consumption becomes overshadowed.
As we transition to lower impact energy sources to operate our buildings, the impact of material choices will make up a greater percentage of the footprint.