简介:According to the UN, it is predicted that the human population could reach ten billion people by the year 2050. For broadcaster and naturalist Chris Packham, who has dedicated his 想看更多BBC.地平线.2020.从七十七亿人口开始.2020.地平线十七人口开始 的电影, 请关注我们的网站:www.ywzfgc.com