A Car Free Day... Brilliant!

My significant other is in Brussels on business this week and reported back that Sunday there were no cars to be seen downtown. This took her by surprise, but upon more research, hundreds of cities (mostly in Europe), including London and Paris observed the car-free day yesterday or today. Like many Americans, I am behind the curve but eager to learn about initiatives to help our population reduce our carbon emissions- this particular event strikes me as a brilliant way to help people (or force them, rather) to consider an alternative to their cars. Granted, there are lots of logistical issues to consider, and most people will go back to their normal routine the day after, but maybe they'll start to think a little greener than before.