"Beijing is confident of returning a blue sky to our citizens, and it will not be a short-lived 'APEC blue,' but a long-lasting 'Olympic blue.'"

Zhang Jiandong, vice-mayor of Beijing and vice president of the 2022 Winter Olympics Bidding Committee,

on the bid's clean air promise by Beijing and Zhangjiakou for the 2022 Games, quoted by People's Daily Online Thursday.