Strong employment and solid work-life balance are two of the reasons Vancouver is tops in North America when it comes to sustainability, according to an Arcadis report. The study ranks 22 cities across the continent, as well as several other world cities, and measures sustainability using quality of life, environmental and economic factors. The city also scored well when it comes to air pollution; in fact, it received the highest score worldwide in this measure. It also did well in terms of transit infrastructure. Areas of potential improvement for Vancouver include the need to increase affordable housing and pricing on consumer goods. It also received less-than-optimum scores in the categories of crime, green space and connectivity. Globally, Vancouver came in at number 23. It was in number one spot in North America for sustainability. Zurich took top spot in the world because of its environmentalism and financial institutions. As well, the Swiss city has worked hard to fight climate change and resource scarcity. To view the full report, visit here .