他和其他专家说，富裕国家在未来可能不得不减少它们的消费和二氧化碳排放量。
He and other experts say wealthy countries may have to reduce their consumption as well as their production of carbon in the future.
为了保证非能源消费导致的二氧化碳的排放量低于4000亿吨，减少森林砍伐和土地利用变化等因素导致的温室气体排放将很有必要。
To keep these emissions below 400bn tons, complementary reductions in emissions from deforestation and land use change, as well as other greenhouse gases, will also be necessary.
逐步减少交通运输领域石油能源产品的使用量，对减少能源消费总量和二氧化碳排放量十分重要。
Gradually reducing the use of petroleum products in the traffic and transportation sector is very important to reducing overall energy consumption and the emission of carbon dioxide.
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