Carbon dioxide and methane in the atmosphere block the escape of heat into space.
大气中的二氧化碳和甲烷阻止热量向太空散发。
Humans take in oxygen and breathe out carbon dioxide.
人吸入氧气，呼出二氧化碳。
In fact it is mostly carbon dioxide.
事实上，它主要是二氧化碳。
Today, however, the potential problem is too much carbon dioxide.
但如今，潜在的问题是二氧化碳过多。
They forget about one of the key causes of carbon dioxide.
他们忘记了二氧化碳产生的其中一个关键原因。
Carbon dioxide is a source of plant food.
二氧化碳是植物食物的来源。
Carbon dioxide, in his view, is the main culprit.
在他看来，二氧化碳才是罪魁祸首。
Gas power emits just half the carbon-dioxide of coal.
天然气的二氧化碳排放量只有煤的一半。
Carbon dioxide is the planet's thermostat.
二氧化碳是地球的恒温器。
It's not just carbon dioxide that feeds a forest.
森林所需的并不仅仅是二氧化碳。
With an excess of carbon dioxide, Venus is hot enough to melt lead.
而二氧化碳过多的话，金星可以热到能融化铅的地步。
"More carbon dioxide can dissolve in cold water than warm," he said.
他说：“二氧化碳在冷水中的溶解度要高于在暖水中。”
Carbon dioxide in pure form can asphyxiate because it is heavier than air.
因为二氧化碳比空气要重，纯净的二氧化碳可以使人窒息。
They consume carbon dioxide, and release oxygen.
它们消耗二氧化碳，并释放氧气。
The level of carbon dioxide in Earth's atmosphere is one.
地球大气中二氧化碳的水平是其中之一。
OF ALL the blights afflicting the sea, carbon dioxide is just one.
在所有正折磨着大海的破坏分子中，二氧化碳只为其一。
Without carbon dioxide, the planet would freeze over.
如果没有二氧化碳，地球将冻结。
Crop production will suffer as carbon dioxide emissions rise, after an initial increase in growth.
在初期的产量增长后，粮食生产将因为二氧化碳的增加而受到影响。
Another way would be growing algae in the ocean to suck up carbon dioxide.
另外一种办法是可以通过在海洋里种植藻类来吸收二氧化碳。
They found that such mice could not detect carbon dioxide, as seen in the chart.
由上图表数据得出结论，他们发现这样的白鼠探察不到二氧化碳。
Get the blood flowing and the carbon dioxide out and bring in healthy new oxygen.
让血液流动起来，让二氧化碳呼出去，换进新鲜健康的氧气。
Could it be the carbon dioxide in my respiratory system?
是不是因为我呼吸系统中的二氧化碳在作怪？
The mangrove forest also sequesters carbon dioxide in its root system.
红树林的的根系可以起到隔绝碳的作用。
Earth has a natural transport system standing ready to get rid of carbon dioxide.
地球拥有一套现成的排放二氧化碳的自然运输系统。
These will absorb carbon dioxide from the atmosphere and then conveniently sink when they die.
藻类则可以从大气中吸收二氧化碳，而藻类死亡时，会很容易沉入海底。
Electric power is highly efficient, so they will emit less carbon dioxide than conventional cars.
电力是高效的能源，所排放的二氧化碳要比传统汽车更少。
Cattle produced the least carbon dioxide per unit of body mass.
每单位体重，牛产生的二氧化碳最少。
Increasing carbon dioxide in the atmosphere has a double effect on coral.
大气中不断上升的二氧化碳含量对珊瑚有双重作用。
Increasing carbon dioxide in the atmosphere has a double effect on coral.
大气中不断上升的二氧化碳含量对珊瑚有双重作用。
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