People walk past a statue on a foggy day in Cangzhou, North China's Hebei province, Dec 3, 2011. Heavy fog shrouded Shandong and Hebei provinces Saturday, crippling traffic, closing expressways and delaying flights. [Photo/CFP] 

Ulrik Badertscher of Norway competes during the Beijing Oakley Shaun White Air and Style snowboard tournament at the Birds Nest National Stadium in Beijing Dec 3, 2011. [Photo/Agencies]