他们综合日射日光、海洋和大气的成分及流通的有关数据，模拟影响地球气候变化的过程。
They crunch Numbers that simulate the processes that drive Earth's climate, like incoming sunlight and the circulation and composition of the ocean and atmosphere.
我们实际上改变了地球大气层的化学成分。
We have literally altered the chemistry of our planet's atmosphere.
当然，二氧化碳与温度的相关性并不能确定是大气成分的变化导致了气候变暖或变冷的趋势，还是它们本身造成的。
The correlation of carbon dioxide with temperature, of course, does not establish whether changes in atmospheric composition caused the warming and cooling trends or were caused by them.
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