With one year to go before the Beijing Olympic Games, a well-known CCTV news anchor bought carbon offsets for the first time. Here, he explains why.

• 在距离北京奥运会开幕一年之际,中国中央电视台主持人第一次购买了碳排放额度,以抵消一年中开车将排放的二氧化碳。他在此解释这样做的原因。