Burning fuels such as coal and oil pump vast amounts of greenhouse gases into the atmosphere.
燃烧煤炭和石油这类化石燃料会产生大量的温室气体。
March in place. Pump your arms to increase your calorie-burning power.
可以走走。挥动你的臂膀来增加能量的燃烧。
Burning forests to clear that land can pump vast quantities of climate-warming emissions into the atmosphere, enough to cancel out any of the benefits the biofuels were meant to bring.
通过焚烧森林开垦地块会排放大量导致气候变暖物质到大气中，这足以抵消使用生物燃料带来的益处。
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