Moreover, most economic models do not account for the externalities related to coal and carbon pollution. For example, a recent report by Trucost estimates that coal-fired power generation worldwide may be responsible for around $1 trillion of damage due to climate change and air pollution.
此外，大部分经济模型没有与计算煤炭和碳污染有关的外部性。比如，据Trucost的一份最新报告测算，全球煤电在气候变化和空气污染等方面造成的伤害相当于1万亿美元左右。如果要求将这些成本内部化，许多煤电厂将失去竞争力。