Damned if you do, damned if you don't.

So, walking is better for you as well as being more eco-friendly.

Similar results came out in this Dutch study (http://bit.ly/pjokec). I was shocked to learn that, for bicyclists, breathing polluted air was actually a much bigger health risk than traffic crashes.

Their conclusion, though, was this: "On average, the estimated health benefits of cycling were substantially larger than the risks relative to car driving for individuals shifting their mode of transport."

Basically, the benefits of active transportation far outweigh the risks.

Funny how it slipped my mind but bike messengers in London of the early 90s always used to wear masks. No, not the wimpy surgical masks Asians wear. More a respirator, like this http://www.eastwood.com/sas-bandit-respira…

Carbon black, maybe it is time to change the colour and improve the life of bike brakes and tyres.