The first bacteria, for instance, consumed carbon dioxide, removing it from the atmosphere and limiting the effect of this greenhouse gas.
举例说，最初的细菌消耗了二氧化碳，从大气中吸收了它并限制这一温室气体的作用。
Methane, the primary component of natural gas and among the more potent greenhouse gases, has far more of an effect on climate change than carbon dioxide.
甲烷是天然气的主要成分，也是温室效应相对比较高的气体之一，它对气候变化的影响远比二氧化碳强得多。
Then there's manure —all that animal waste generates nitrous oxide, a greenhouse gas that has 296 times the warming effect of CO2.
接下来是动物粪便——所有动物的粪便都产生一氧化二氮，一种温室效应是CO2 296倍的温室气体。
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