Although the system would consume energy, it would return energy to the grid via methane generation from composting nonedible parts of plants.

尽管该系统会消耗能源，但它会通过从植物不可食用的部分堆肥产生的沼气将能源回馈给电网。

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Although carbon dioxide is the more important greenhouse gas, methane measurements will be a more practical early application to test the market for this sort of data.

尽管二氧化碳是更为重要的温室气体，但测量甲烷含量作为一个早期应用方法对测试此类数据的市场价值有更实际的作用。

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Although carbon dioxide is the more important greenhouse gas, methane measurements will be a more practical early application to test the market for this sort of data.

虽然二氧化碳是一种更主要的温室气体，但是对于甲烷进行监测将是作为验证此类数据市场的一种更为实用的举措。

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Although methane itself is not regulated as a water pollutant, the study could lead to federal regulation of the heretofore largely unregulated practice of the hydraulic fracturing, or fracking, of deep layers of shale to tap vast reservoirs of natural gas in the United States.

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Although carbon dioxide is the more important greenhouse gas, methane measurements will be a more practical early application to test the market for this sort of data.

ECONOMIST: Greenhouse-gas monitoring

Moreover, although controversial, life-cycle analysis indicates that fugitive methane emissions make shale gas obtained by hydraulic fracturing as carbon-intensive as coal.

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