Beijing Olympic Smog

Ok, so I admit that I didn't know that the olympics were opening this weekend. I'm not a big olympic fan, and it really doesn't interest me that much. However, I saw this picture which is apparently a US Olympic cyclist who showed up at the airport with a mask - with concern about the city smog.

When I did further research on this, I found the picture below, which, if accurate, really shows the air pollution problem at the olympic site. If this is really the case, then the health part of this story got a little more interesting for me, and may warrant more reading and exploration....