Had the first world, in the mid-1950s, begun putting a premium on fossil energy,
developed more energy - efficient cities, got people out of cars and onto
public transport and ensured the cars that were on the road were appropriately sized and forced to be as thermally efficient as possible, and then rolled out these innovations to the
developing world, there can be little doubt that the world would now be in far
better health, whatever one makes of AGW.
Urban
transport systems based on a combination of rail lines, bus lines, bicycle pathways, and pedestrian walkways offer the
best of all possible worlds in providing mobility, low - cost transportation, and a healthy urban environment.Some of the most innovative
public transportation systems, those that shift huge numbers of people from cars into buses, have been
developed in Curitiba, Brazil, and Bogotá, Colombia.