So we, too, have to deal with climate change. 因此我们也必须应对气候的变化

86. Changes in the climate are affecting these birds,
    气候的变化正在影响这些鸟类
87. just as they are affecting us.
    同时也在影响我们人类
88. A quarter of the world's people live in arid lands.
    世界上四分之一的人口居住在干旱地区
89. So we, too, have to deal with climate change.
    因此我们也必须应对气候的变化
90. Less rainfall and extended droughts allow deserts to grow.
    降雨量的减少与旱期的延长使沙漠区域得以扩张
91. And as they do, so does the likelihood
    与此同时 一种自然中最令人生畏的现象之一的
92. of one of nature's most intimidating events.
    发生几率也大大上升

来自《行星地球 第三季 第三集 Planet Earth S03E03 沙漠与草原》第 89 行