CO2 emissions result from other, generally beneficial acts, such as burning coal to keep warm, burning kerosene to cook, or burning gas to transport people. The benefits of fossil fuels must be weighed against the costs of global warming.
事实上，没人会闲着无聊去排放什么二氧化碳。二氧化碳的排放是其他行为的结果，而这些行为往往是有益的，比如燃煤取暖，烧油煮饭或者是消耗汽油用于交通运输。因此燃烧矿物燃料所带来的好处应该和全球变暖所带来的成本相权衡。