These "dirty snowballs" castoff gas and dust whenever they venture near the sun.

这些“脏雪球”在冒险接近太阳时会丢出气体和尘埃。

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High gas costs and very low auction prices for carbon emissions within the European emissions Trading Scheme meant that generators chose to use dirty coal rather than gas.

较高的天然气价格和如今欧洲排放交易体系上极低的碳排放量拍卖价格意味着高污染的煤炭更加受到发电厂商的欢迎。

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Our days are packed with work, chores, obligations, dirty dishes, laundry, phone calls, text messages, the Internet, e-mails, high gas prices, low stock prices and more to do than we want to.

我们的日常生活充斥着工作，家务，义务，需要清洗的碗筷，脏了的衣服，还有来电，短信，因特网，电子邮件，高昂的燃气费用，走低的股市以及很多我们不得不做的事情。

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With the R-22 price spike HDSN can now pay contractors for the dirty gas thereby getting supply to clean up and decreasing the amount of gas that gets into the atmosphere.

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Prior to the EPA phase out the economics were not attractive enough to promote wide spread reclamation Despite the fact that it is illegal, many many contractors would and did vent the gas into the air rather then capture and reclaim it because in many cases they would have to pay to get rid of the dirty gas.

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The future of a technology that converts dirty cheap coal into clean natural gas for transportation fuel was underscored last night by a Chinese investment in Synthesis Energy Systems(SYMX, NASDAQ), a small Houston company that holds a valuable license for this transforming technology.

FORBES: Synthesis Energy Systems Will Turn China's Dirty Coal Into Clean Natural Gas