However, burning natural fuels is not the best way to use them, as much of the energy is wasted: it disappears into the air.
然而，燃烧天然燃料并非能源利用的最佳途径。因为在燃烧的过程中，许多能量被释放到空气中，造成了能量浪费。
Natural gas and coal—also fossil fuels—have similarly seen price declines that look to be long-lived.
天然气和煤炭，还有化石燃料，也出现了类似的价格下跌，而且看起来会持续很长时间。
Renewables account for only a small share of global primary energy consumption, which is still dominated by fossil fuels—30% each for coal and oil, 25% for natural gas.
可再生能源只占全球主要能源消耗的一小部分，化石能源仍然占主导地位——煤炭和石油各占30%，天然气占25%。
Natural gas, with its reputation as a linchpin in the effort to wean the nation off dirtier fossil fuels and reduce global warming, may not be as clean over all as its proponents say.
天然气被认为是使国家脱离脏兮兮的矿物燃料并阻止气候变暖的重要环节，但是可能并不像它的支持者所说的那样清洁。
One technique they're experimenting with is so-called "dew-point cooling," which relies on the natural energy produced by evaporating water, rather than fossil fuels.
其中有一项已经试验的技术叫做“露点制冷”，这项技术依赖自然能源自造蒸馏水。而不是利用化石燃料来制造。
Geologists search for fuels and minerals, study natural hazards, and work to protect Earth's environment.
地质学家寻找地球上的燃料和矿藏、研究自然灾害并制订保护地球环境的措施。
Neuroscience research confirms that pleasure is what makes our brains want to repeat and remember an activity, and it's that kind of natural repetition that fuels learning.
神经科学研究证实了愉悦使我们的大脑想要重复和记住某个活动，它也是学习的天然动力。
Methane, familiar to most people as the main component of natural gas fuels, is a greenhouse gas less common than carbon dioxide in the atmosphere but far more potent.
甲烷是人们所熟悉的一种气体，是天然气燃料的主要成分。
Today, humans consume an average of 15 trillion watts of power, 85% of which comes from burning fossil fuels such as oil, coal, and natural gas.
目前的情况是，人类每天平均消耗15兆瓦特的能量，而其中的85%来自燃烧化石燃料，例如石油，煤矿，天然气。
The steam, however, is made by burning other fossil fuels-normally natural gas-and because heating rock takes a lot of steam, making that steam takes a lot of money.
然而，蒸汽是需要燃烧其他燃料来产生的——一般来说是天然气——因为加热岩石需要很多的蒸气，那么制造这些蒸汽的成本就会很高。
Many people do have access to natural gas or propane tanks at their houses, however, so it is likely that these fuels will be used to power future home fuel cells.
尽管如此，现在很多人家里都能使用天然气或储气罐，因此，可以考虑将来把这些燃料用于家庭燃料电池。
America has abundant natural gas reserves, and he wants natural gas to replace petroleum-based vehicle fuels.
美国具有丰富的天然气藏量，他计划用天然气来取代基于石油的车辆燃料。
Last month the International Energy Agency predicted global demand for coal would increase by 1.9% a year until 2015, outpacing all other fossil fuels except natural gas.
上个月国际能源机构预测2015年之前全球煤炭需求量将以每年1.9%的速度增长，其速度将超过除天然气以外的所有其他矿物燃料。
These can run on natural gas, ethanol or various other fuels, including the gases produced when making biochar.
这种电池可以依靠天然气、乙醇或者包括制造生物碳产生的瓦斯等在内的各种燃料运行。
This offsets natural gas's most important advantage as an energy source: it burns cleaner than other fossil fuels and releases lower carbon dioxide emissions.
这点就抵消了天然气作为能源最重要的一个优点：与化石能源相比，燃烧更清洁，释放的二氧化碳更少。
Until recently, the world's energy demands were met almost entirely through the use of fossil fuels: wood, coal, petroleum, and natural gas.
不久之前还几乎全靠木头，煤炭，石油，天然气等化石燃料来满足全人类对能量的需求。
It can ostensibly run on a variety of fuels, including: gasoline, kerosene, propane, natural gas, ethanol, methanol or hydrogen.
可以使用汽油，煤油，丙烷，天然气，乙醇，甲醇和氢气等多种燃料。
Coal is the dirtiest of fossil fuels, producing twice the carbon dioxide that natural gas does when it is burned. That makes it a big cause of global warming.
煤炭是最污秽的化石燃料，燃烧时会比天然气多产生两倍的二氧化碳，成为全球暖化的主因之一。
The infrastructure would displace 300 large coal-fired power plants and 300 more large natural gas plants and all the fuels they consume.
一间产生的能源相当于300间煤电厂再加300间天然气厂以及它们的运行消耗。
The report says that fossil fuels (i.e. oil, natural gas, or coal) are used to generate 66 percent of electricity worldwide.
该报告称，作为发电原料，矿物燃料(即石油、天然气或煤)所发电量占全世界总发电量的66%。
Oil fuels transportation and farm machinery, and natural gas is the basis of synthetic nitrogen production (prices have tripled since 2002).
粮食运输以及农业机器都需要石油，合成氮肥(2002年以来价格已经增长2倍)生产离不开天然气。
The soaring prices of oil and natural gas have sparked a race to make transportation fuels from plant matter instead of petroleum.
据physorg网2006年6月29日报道，石油以及天然气飞涨的价格引发了一场以植物而不是石油为交通燃料提取原料的竞争。
Natural and synthetic fibres and most fuels, drugs, and plastics are organic.
天然和合成纤维、大部分的燃料、药剂和塑料制品都是有机化合物。
All scientists subscribe_to the view that the increase in the earth's temperature is due to the burning of fossil fuels like coal, natural gas and oil to produce energy.
所有科学家都赞同这样的观点：人们为了生产能量而燃烧化石燃料(如煤、天然气、石油等)，从而引起了地球温度的升高。
Today however, the most economical way to make hydrogen is by reforming fossil fuels such as natural gas—with the nearly same negative impact to the climate as direct combustion.
然而今天，制备氢气最经济的方法是通过重整如天然气之类的化石燃料，天然气直接燃烧对环境有同样的负面影响。
To help slow this process down we need to reduce our rate of fossil fuel consumption, and then find alternative fuels to the earth's natural reserves.
为帮助减缓地球变暖的过程，我们需要降低矿物燃料消耗的比率，然后找到地球自然储备资源的替代燃料。
To help slow this process down we need to reduce our rate of fossil fuel consumption, and then find alternative fuels to the earth's natural reserves.
为帮助减缓地球变暖的过程，我们需要降低矿物燃料消耗的比率，然后找到地球自然储备资源的替代燃料。
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