North America metropolitan area by population in North America: Greater Mexico City. Canada also breaks into the top ten largest metropolitan areas with the Toronto metropolitan area having six million people. The proximity of cities to each other on the Canada–United States border and Mexico–United States border has led to the rise of international metropolitan areas. These urban agglomerations are observed at their largest and most productive in Detroit–Windsor and San Diego–Tijuana and experience large commercial, economic, and cultural activity. The metropolitan areas are responsible for millions of dollars of trade dependent on international freight. In Detroit-Windsor the Border Transportation Partnership study
Conservatism in North America Conservatism in North America Conservatism in North America is a political philosophy that varies in form, depending on the country and the region, but that has similar themes and goals. Academic study into the differences and similarities between conservatism in North American countries has been undertaken on numerous occasions. Reginald Bibby has asserted that the primary reason that conservatism has been so strong and enduring throughout North America is because of the propagation of religious values from generation to generation. This connection is strongest in mainstream Protestantism in the United States and both Protestantism and Roman Catholicism in Canada. According