They found that the aircraft consumed as much as 15% less fuel (coupled with a reduction in carbon dioxide output).

他们发现，飞机消耗的燃料减少了15%（同时二氧化碳排放量也减少了）。

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Overall, this pattern means that the carbon dioxide output from electricity generation in the UK was much greater in the late summer months of 2006 than a year earlier.

总之，这种格局意味着，仅是相隔一年多，英国发电排放的二氧化碳量已经远远超过2006年的夏季。

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Scientists recorded their heart rate, oxygen intake and carbon dioxide output - and discovered the number of calories used increased by on average a third during the films.

科学家记录了他们的心跳、摄氧量和二氧化碳排出量，发现观看恐怖片时，受访者卡路里消耗平均增加了三分之一。

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Driving to work leads to traffic congestion, an outrageous carbon dioxide output, not to mention headaches.

FORBES: Want To Go Green? Shut Your Office Down

He says that translates to 10% of the national total of carbon dioxide released annually, or one quarter of the industry's carbon dioxide output.

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U.S. carbon-dioxide output rose steadily in the 1990s and 2000s, peaking in 2007.

WSJ: Rise in U.S. Gas Production Fuels Unexpected Plunge in Emissions