But perhaps the most valuable benefit of recycling is the saving in energy and the reduction in greenhouse gases and pollution that result when scrap materials are substituted for virgin feedstock.

然而，垃圾回收最大好处可能是能量的节省与温室气体和污染的降低，当废料当作原料使用时就会产生污染。

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Volt enthusiasts like to recite the fact that the Volt can go 35 miles on battery-power and then shift seamlessly into gasoline-engine mode, saving on gas and reducing emissions of greenhouse gases.

追捧Volt的人津津乐道的一个事实是：Volt能用电行驶35英里后，平顺地切换到汽油机模式，由此能节省燃油，减少温室气体排放。

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The key to energy saving in solar greenhouse is to reduce heat loss from south roof at night.

减少夜间通过前屋面的散热是日光温室节能的关键。

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The question is, can you create more jobs by expanding that and also helping to take care of another problem like energy efficiency, which we all know is a big avenue towards saving -- toward doing something about greenhouse gases.

WHITEHOUSE: Press Briefing

Reducing fouling will save fuel, in turn saving money, as well as cutting shipping's contribution to greenhouse-gas emissions.

ECONOMIST: Monitor: Reducing the barnacle bill | The