J·达玛斯戴特1 概况煤炭是美国主要的发电燃料和出口创汇产品，美国55%的电力是由燃煤电站生产的，每年煤炭出口创汇40亿美元。美国每年的煤炭消费量占全国能源总消费量的1/5。据美国能源部能源信息局的预测，在21世纪的前几十年内煤炭仍将是美国的重要能源。过去几十年里,美 J · Damaste 1 Overview Coal is the major power generation fuel and export earning product in the United States. 55% of the electricity in the United States is produced by coal-fired power stations, and the annual export of coal reaches 4 billion U.S. dollars. The annual coal consumption in the United States accounts for one fifth of the total energy consumption in the country. According to the US Department of Energy’s Bureau of Energy Information, coal will remain an important U.S. energy source in the first few decades of the 21st century. In the past few decades, the United States