By Matthew Sachs, Ottawa Citizen, July 3, 2014

What type of housing do you think has the smallest environmental impact? If
you’re picturing a cabin in the woods, think again. Actually, high-density
living, such as a downtown apartment building, is much more environmentally
friendly than living in a rural community. It may surprise you to learn that New
York City has the lowest per capita energy use in North America by far. via
Modern Housing: Why highrises are good for the environment | Ottawa
Citizen.