地球的力量 第2集 大氣(1)大氣創造氣候
This is our planet the Earth.
這是我們的星球，地球
It's unique in the solar system, perhaps even in theuniverse.
在太陽系這是獨一無二的，也許甚至在宇宙中也是
My name is Iain Stewart
我叫伊恩.斯圖爾特
and I want to show you how our planet works.
我想告訴大家我們的星球是怎樣運作的
I'm exploring the atmosphere.
這星期我們講述的是大氣層
The atmosphere creates our climate
大氣創造了我們的氣候
and protects us against the cold hostility of space.
保護我們不受宇宙寒冷的襲擊
And it provides oxygen to fuel our bodies.
并且為我們的身體提供氧氣
Our atmosphere is full of contradictions.
我們的大氣層充滿了矛盾
It's immensely powerful and yet it's incredibly sensitive.
它非常強大 但也很容易遭到破壞
It's destructive and at the same time it protects us.
它具有破壞性，但同時也保護著我們
It's essential for all life and yet it was created by life.
它對所有的生命來說很重要，但它也是由生命所創造的
Without it, the planet would be utterly uninhabitable.
沒有大氣層，我們的星球可能會完全不適于居住
