Wouter Weylandt, a few thoughts on cycling.
Milan gets better every time I come here. One of the happy new discoveries is a network of bicycle lanes in the city, like these on via Vittor Pisani. The benefits are clear: less fuel consumed and carbon produced, less air pollution, healthier citizens and a more accessible city. Good bike lanes - note how these are separated from traffic by a median and have their own crossings, away from pedestrians - are just a part of the solution.
Another reason for the cleaner air is the widespread adoption of compressed natural gas buses and service vehicles, both in Milan and in Rome.
Great cities are rarely made ex-novo. They are adjusted, transformed, tweaked, and rejuvenated.