本世纪末

导读:社科院学者郑真真在2016年世界经济论坛上的发言引起了这场关于中国人口的激烈讨论。她称，本世纪末中国人口将减少到1980年的水平，也就是10亿人。What scholar Zheng Zhenzhen of Chinese Academy of Social Sciences said at the 2

It looks like the world could be a much hotter place by the end of thecentury.貌似到本世纪末地球上温度会比现在高很多。New data released by Nasa scientists is revealing how temperature andrainfall patterns around the worl