Detroit is America's "Shrinking City". People, especially the white people who had the most money, abandoned it. Over 80% of the population is black in 2012 and the crime rate is one of the highest in all of the gun-crime country, United States. Population, economy, everything is going down there. For example, GM got rid of huge deal of factories there and moved them out of the city to somewhere else. Environmentally, that's all good for Toronto cuz less pollution generated from smaller Detroit and its area will flow into GTA on the Westerlies.Lol. Clearly you haven't spent much time in either city because that's about as far off the mark as is possible.