by LAN XINZHEN
What would happen if each one ofthe 1.3 billion Chinese citizenssaved one pair of disposablewooden chopsticks, one pieee ofwhite paper and one New Year's card everyyear? This might be just simple math formost, but not for Li Tong, who has beenobsessed with finding the answer. "Theoutcome is amazing," said Li. "The savedenergy could probably power all of Beijingfor a week, or even longer."