Today is the 100 days countdown to the Winter Olympics. The theme of going green and low-carbon looks clearer each day. The Organizing Committee of the Beijing Winter Olympic Games and the host cities such as Beijing and Zhangjiakou have made full use of existing venues and temporary old venues left behind after the 2008 Beijing Olympic Games. In this episode of Bizbeat, CGTN's Zheng Junfeng will list out all the low-energy technologies at these venues and explain how going green works for the Winter Olympic Games.