Center for Health and the Global Environment, Harvard Medical School, Boston, Massachusetts, USA.
Ann N Y Acad Sci. 2011 Feb;1219:73-98. doi: 10.1111/j.1749-6632.2010.05890.x.
Each stage in the life cycle of coal-extraction, transport, processing, and combustion-generates a waste stream and carries multiple hazards for health and the environment. These costs are external to the coal industry and are thus often considered "externalities." We estimate that the life cycle effects of coal and the waste stream generated are costing the U.S. public a third to over one-half of a trillion dollars annually. Many of these so-called externalities are, moreover, cumulative. Accounting for the damages conservatively doubles to triples the price of electricity from coal per kWh generated, making wind, solar, and other forms of nonfossil fuel power generation, along with investments in efficiency and electricity conservation methods, economically competitive. We focus on Appalachia, though coal is mined in other regions of the United States and is burned throughout the world.
煤炭开采、运输、加工和燃烧的生命周期的每一个阶段都会产生废物流,并对健康和环境造成多种危害。这些成本是煤炭行业之外的,因此通常被视为“外部性”。我们估计,煤炭的生命周期影响以及产生的废物流每年使美国公众损失三分之一到五千多亿美元。此外,其中许多所谓的外部性是累积的。保守地说,将这些损害考虑在内,会使每千瓦时燃煤发电的价格增加一倍到三倍,这使得风能、太阳能和其他形式的非化石燃料发电,以及对效率和节电方法的投资,在经济上具有竞争力。我们关注的是阿巴拉契亚地区,尽管美国其他地区也在采煤,而且世界各地都在燃烧煤炭。