If running a 42 kilometer foot race was not tough enough, Sunday's Beijing International Marathon saw thousands of competitors brave a "hazardous" smog which engulfed the Chinese capital.
CNN.com - Top Stories, CNN
Sun, 10/19/2014 - 10:41am
If running a 42 kilometer foot race was not tough enough, Sunday's Beijing International Marathon saw thousands of competitors brave a "hazardous" smog which engulfed the Chinese capital.