全球温室气体排放的17.4%由毁林和森林退化所致。
4% of global greenhouse gas emission resulted from deforestation and forest degradation.
如此的肆意耕作便得早期农民足以影响全球温室气体的含量。
Such profligacy would make the contributions of early farmers large enough to have an effect on worldwide levels of greenhouse gases.
较低的人口增长率将使得减少全球温室气体排放的目标更容易达到。
Slower population growth will make reductions in global greenhouse gas emissions easier to achieve.
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