The atmosphere has small amounts of nitrous oxide.

大气中含有少量一氧化二氮。

Dentists may give patients nitrous oxide so they will not feel pain.

牙医可能会给病人一氧化二氮，这样他们就不会感到疼痛。

Insects produce less ammonia than pig and poultry farming, ten times less methane than livestock, and 300 times less nitrous oxide.

昆虫产生的氨比猪和家禽少，它们产生的甲烷比家畜少十倍，而产生的一氧化二氮比家畜少三百倍。

Nitrous oxide is also a greenhouse gas.

氮化物一氧化氮也是温室气体的一种。

The nitrous-powered rocket's only byproduct is hot, pure air.

氧化氮动力火箭排出的副产品只不过是纯净的热气体。

As a result: Nitrous oxide became an early form of anesthesia.

结果：一氧化二氮成为一种早期的麻醉剂。

70% of this was caused by methane and nitrous oxide emissions.

其中70%是由甲烷和一氧化二氮的排放造成的。

Soil stores organic carbon, but can emit methane and nitrous oxide.

土壤储存有机碳，但会释放甲烷和一氧化二氮。

It is then converted to nitrous oxide which adds to global warming.

然后又会转化成加剧全球变暖的亚硝酸氧化物。

About a third of global nitrous oxide emissions are from human activity.

全球的一氧化二氮排放量中大约有三分之一是由人类活动造成的。

Farming biofuels produces nitrous oxide. This is bad for climate change.

种植生质燃料的作物会产生笑气，反而会加速气候变迁恶化到令人笑不出来。

Nitrous oxide (N2O) is a greenhouse gas 300 times more potent than carbon dioxide.

氮氧化物(一氧化二氮)是一种比二氧化碳强300倍的温室气体。

Methane is the most important of these gases, followed by black carbon and nitrous oxide.

甲烷是这些气体的最重要部分，然后才是黑碳和一氧化氮。

Initiate a protocol under UNFCCC to reduce methane and nitrous oxide produced by livestock.

据气候变化框架公约创建一个协议，以减少畜牧业产生的甲烷和一氧化二氮。

Methane and nitrous oxides produced by agriculture account for about 10% of man-made warming.

农业产生的甲烷与一氧化二氮，在人为导致的全球变暖[因素]中，占了约10%。

You have to remove some oxygen to do it, so that nitrous oxide-producing bacteria can thrive.

为繁殖产生氧化氮的细菌，必须消除某些氧。

Others, such as nitrous-oxide emissions fromsoils and methane emissions from animals, cannot.

而另外一些却不能直接检测，比如从土壤中排放的一氧化二氮与从牲口身上排放的沼气。

Scientists estimate nitrous oxide accounts for about 6 percent of human-induced climate change.

在人为引起的气候变化中，科学家估计一氧化二氮约占6%。

A very high excess of oxygen, methane, and nitrous oxides would certainly be suggestive of life.

充足的氧气，甲烷和氧化二氮当然可能预示着生命。

He and some of his grad students wanted to use nitrous oxide as an emissions-free energy source.

他和他班上一些大学生想利用氧化氮作为无排放的动力能源。

Before a procedure, patients inhale these gasses, which are mixed with either oxygen or nitrous oxide.

手术之前，患者会吸入这些混合着氧气或一氧化二氮的麻醉气体。

That's the case for some of the gases that contribute to climate change, such as methane and nitrous oxide.

对一些造成气候变化的气体，如甲烷和氧化亚氮(一氧化氮，笑气)，来说，情况确实如此。

The problem with this method is that methane and nitrous oxide emissions fluctuate strongly in time and space.

这种方法的问题是，甲烷和一氧化氮的排放量在不同时间和空间波动很大。

Emissions of nitrous oxide (a very powerful greenhouse gas) caused by the application of nitrogen fertilisers.

氮肥的使用造成氧化亚氮的排放(一种威力强大的温室气体)。

Many other gases, such as methane and nitrous oxide, contribute to warming, although not as much as carbon dioxide.

其它气体，如甲烷、一氧化二氮等，尽管没有像二氧化碳那样严重的影响气候，但他们依然在加剧全球变暖。

Intensive farms also use fertilizers which release the powerful greenhouse gas nitrous oxide when applied to the soil.

集约化农业生产使用化肥，施到土壤中的化肥会释放强大的温室气体一氧化二氮。

The problem has been how to dispose of the nitrous oxide byproduct, which is far worse for the environment than nitrogen.

问题是如何处置氧化氮副产品，这对环境污染远比氮气更严重。