The importance of this issue became clearly evident when the Sierra Club brought suit to block the development of a ski resort in a wilderness area and the construction of a highway through federal lands. Sierra Club v. Morton, 405 U.S. 727 (1972).

• 当西拉俱乐部提起诉讼以阻止在自然环境区开发滑雪场地和通过联邦地域建筑高速公路时，事实上的损害这一问题的重要性已显而易见[参见"西拉俱乐部诉莫顿"案，载于《美国最高法院判例汇编》第405卷，第727页（1972）]