他们忘记了二氧化碳产生的其中一个关键原因。
浮游植物通过光合作用消耗空气中的二氧化碳产生氧气。
Photosynthesis by phytoplankton removes carbon dioxide from the air and produces oxygen.
天然气的二氧化碳产生量是每单位煤炭释放能量时二氧化碳产生量的一半。
Gas emits about half as much carbon dioxide as coal per unit of energy produced.
它与CO2的关系就如同火炉之于蜡烛。一公斤六氟化硫产生的热量与23吨二氧化碳产生的热量相当。
It is to carbon dioxide as a furnace to a candle: one kilogram of the stuff causes as much warming as 23 tonnes of carbon dioxide.
阻挡阳光照射将有助于地球的降温，但对高级别的二氧化碳产生的其它负影响却几乎无能为力，比如对海洋的酸化。
Blocking out the sun would help to cool the planet, but it would do little to address other nasty side-effects of high carbon-dioxide levels, such as the acidification of the oceans.
这些被称为浮游植物的微生物，吸收二氧化碳产生世界上一半的氧气量——这等于陆地上的植物和树木所产生的氧气量。
The tiny organisms, known as phytoplankton, also gobble up carbon dioxide to produce half the world's oxygen output-equaling that of trees and plants on land.
燃烧化石燃料消耗氧气并产生二氧化碳。
Burning fossil fuels uses oxygen and produces carbon dioxide.
燃烧甲烷产生二氧化碳，然后释放到大气中。
The burning of methane generates carbon dioxide that is released into the atmosphere.
这些细菌实际上就是硫化氢和二氧化碳的结合体，而这种化学反应产生的有机物质是更大的有机体的食物。
These bacteria actually combine the hydrogen sulfide with the carbon dioxide and this chemical reaction is what produces organic material which is the food for larger organisms.
是的，当大多数人想到汽车和燃料时，他们想到的都是其产生的二氧化碳，但他们没有意识到情况并非总是如此。
Yes, when most people think about cars and fuel, they think about all the carbon dioxide that's produced, but they don't realise that that wasn't always the case.
这是因为在非快速眼动睡眠中，自动的新陈代谢系统对呼吸有排他的控制，身体消耗更少的氧气，产生更少的二氧化碳。
This occurs because during NREM sleep the automatic, metabolic system has exclusive control over breathing and the body uses less oxygen and produces less carbon dioxide.
在我看来，这些报告过多地谈论了卡车产生的二氧化碳，而这些卡车把新鲜的货物运送到商店，然后把垃圾运走。
To my mind, the reports talk too much about the carbon dioxide produced by the trucks that deliver the fresh goods to the shops and take the waste away.
再次强调，公路运输是罪魁祸首，因为仅公路运输就占了运输产生的二氧化碳排放量的84%。
Once again, road transport is the main culprit since it alone accounts for 84% of the carbon dioxide emissions attributable to transport.
这种化合物加热后会排出二氧化碳，产生氧化钙。
Heating this chemical compound drives off carbon dioxide gas, leaving calcium oxide.
与此同时，地球上约10%的二氧化碳来自产生食物垃圾的活动。
At the same time, about 10% of all CO2 on the Earth is from activities that produce the food waste.
尽量骑自行车或乘坐公共交通上学而不坐小汽车，因为它会产生更少的二氧化碳。
Try to take bicycles and public transportation to school instead of cars because it will make less CO2.
使用酵母。酵母以混合物中的糖为原料，并产生二氧化碳。
By using yeast which feeds on the sugar in mixtures and produces carbon dioxide.
制造一个这种新集装箱产生的二氧化碳，只相当于制造钢材集装箱产生的二氧化碳的25%。
Making one of the new containers produces 25% of the carbon dioxide that would be generated by the manufacture of its steel counterpart.
如果惠勒先生的汽车符合美国环保署即将实施的2012年二氧化碳排放指南。他的驾驶每天会产生20.9磅二氧化碳。
If Mr. Wheeler's car is in compliance with the EPA's upcoming 2012 carbon dioxide emissions guidelines, his drive will produce 20.9 pounds of CO2 per day.
藻类可以吸收二氧化碳并产生能够用于生产能源的沼气。
The algae would absorb carbon dioxide and produce methane which could be used to produce energy.
二氧化碳的排放可能不会对排放点附近的人们的健康产生直接影响，但整体来说，二氧化碳的排放能引发很多问题。
Carbon dioxide emissions may not be directly responsible for health problems at or near their point of release, but in aggregate they can cause lots of distress.
每单位体重，牛产生的二氧化碳最少。
Cattle produced the least carbon dioxide per unit of body mass.
作为一种主要的截热气体，二氧化碳的产生量与燃油用量成正比，而奔驰精灵自称是美国市场单位燃油行驶里程最长的汽油驱动车辆。
Production of carbon dioxide, the main heat-trapping gas, is proportional to fuel use, and the Smart claims to be the highest-mileage car powered by gasoline on the American market.
这些浮游生物的光合作用量占到海洋中生物光合作用量的40%，因此，这样的伽马射线爆可能会对地球的二氧化碳水平产生严重影响。
These organisms account for up to 40% of the ocean's photosynthesis, so such an event could have a serious impact on Earth's carbon dioxide levels.
发酵产生二氧化碳，从而减少了本可以转化为乙醇的碳。
Fermentation produces carbon dioxide, and so reduces the amount of carbon available to be converted to ethanol.
卡尔德拉说：“这些结果真正表明了植物对二氧化碳作出何种反应对产生准确气候预测是十分重要的。”
"These results really show that how plants respond to carbon dioxide is very important for making good climate predictions," says Caldeira.
虽然燃料电池和电动汽车本身不会释放二氧化碳，但使用化石燃料生产氢气或电能依旧会产生二氧化碳。
While fuel cell or electric vehicles emit no carbon dioxide themselves, CO2 is produced when hydrogen or electricity is produced from fossil fuels.
虽然燃料电池和电动汽车本身不会释放二氧化碳，但使用化石燃料生产氢气或电能依旧会产生二氧化碳。
While fuel cell or electric vehicles emit no carbon dioxide themselves, CO2 is produced when hydrogen or electricity is produced from fossil fuels.
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