By 2050, a quarter ofthe earth's species... 到2050年 地球上四分之一的物种

349. Is excessive exploitation of our
     是我们过度利用
350. Resources threatening the lives of every species?
     资源威胁到了地球上的物种吗
351. Climate change accentuates the threat.
     气候的改变加剧了这种威胁
352. By 2050, a quarter ofthe earth's species...
     到2050年 地球上四分之一的物种
353. Could be threatened with extinction.
     面临着灭绝的威胁
354. In these polar regions, the balance of nature has already been disrupted.
     在两极地区 自然平衡已经被破坏了
355. Off the coast of Greenland, there are more and more icebergs.
     远离格陵兰海岸的地方 出现了更多的冰山

来自《家园 第二部分 Home Part2》第 352 行