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。
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。
Beaulieu and colleagues measured nitrous oxide production rates from denitrification in 72 streams draining multiple land-use types across the United States.
对美国各地多种土地使用类型的72条排水溪流，比尤利和同事测量了脱氮作用造成的一氧化二氮产生率。
Nitrous oxide is stable at ground level but breaks down in the upper atmosphere to form compounds that trigger chemical reactions that destroy ozone.
一氧化二氮在地平面时是稳定的，但在高层大气中则分解而形成某种化合物，从而引发化学反应而破坏臭氧层。
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。
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。
Nitrous oxide is also a greenhouse gas.
氮化物一氧化氮也是温室气体的一种。
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。
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。
The insects generally produced less methane, nitrous oxide and ammonia both per unit of body mass and per unit of mass gained than pigs or cattle.
通常情况下，同猪和牛相比，每单位体重或增加每单位体重，昆虫产生更少的甲烷、一氧化氮和氨气。
Using new technology, clean coal plants sharply reduced the number of sooty particles spewed into the air, as well as gases like sulfur dioxide and nitrous oxide.
使用新技术，清洁煤电厂大大减少了煤烟粒子散发到大气中的数量，以及像二氧化硫和一氧化氮等气体。
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。
Where appropriate, emissions of other greenhouse gases, such as nitrous-oxide from soils and methane emissions from animals, are also taken into account.
其他温室效应气体的排放，比如由动物排放的氮氧化物和甲烷，只要是适用的，都要考虑进去。
While nitrous oxide is a powerful greenhouse gas, when it's burned as rocket fuel, the only byproducts are hot oxygen and nitrogen.
虽然氧化氮是种温室效应气体，但当用作火箭燃料燃烧时，排出的副产品仅仅是热氧气和热氮气。
The emission of methane and nitrous oxide is largely the result of agricultural activities; nitrous oxide from fertilisers and methane mostly from cows.
甲烷和一氧化二氮的排放主要是农业活动的结果：一氧化二氮源于化肥而甲烷主要来自奶牛。
Like Gollany, Johnson USES the specialized Chambers to measure the levels of carbon dioxide, methane, and nitrous oxide released throughout the entire year.
像高兰尼一样，约翰逊利用特制的取样器测量全年排放的二氧化碳、甲烷和一氧化二氮的含量。
Because precipitation usually increases nitrous oxide emissions from the soil, she also collects data after any rain or snowfall.
因为降水通常会加剧土壤中一氧化二氮向外排放，她也搜集每次降雨或降雪后的数据。
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。
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。
There, in a process called denitrification, microbes convert the nitrogen into nitrous oxide (also called laughing gas) and an inert gas called dinitrogen.
在那里，经称为脱氮的过程，微生物把氮转化为一氧化二氮(又称笑气)和一种称为二氮的惰性气体。
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%。
Although present in minute concentrations in Earth's atmosphere, nitrous oxide is a highly potent greenhouse gas and is becoming a keyfactor in stratospheric ozone destruction.
虽然在地球大气层中的浓度甚微，一氧化二氮是一种很强的温室气体，而且正成为破坏平流层臭氧的主因。
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。
Compared with carbon dioxide, nitrous oxide is 300-fold more potent in terms of its warming potential, though carbon dioxide is a far more prevalent greenhouse gas.
虽然二氧化碳是更为普遍的温室气体，但与二氧化碳相比，一氧化二氮是其致暖潜力的300倍以上。
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。
She concluded that when used properly, uncertainty in measured emission levels of methane and nitrous oxide could be reduced from about 50% to less than 10%.
她的结论是，如果使用得当，甲烷和一氧化二氮排放量测量的不确定性可从约50%降低到不足10%。
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。
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。
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