As a result of the National Environmental Policy Act (NEPA), the U. S. Congress (1969) has directed all agencies of the Federal Government to include in every major Federal action significantly affecting the quality of human environment, a detailed statement by the responsible official on the environmental impact of the proposed action. Because of the broad wording of the legislation, and the lack of specific guidelines as to what the detailed statement should contain, interpretation of the law varies widely and has been challenged in the Federal Courts. Nevertheless, this law, which became effective on Jan. 1, 1970 and ushered in what has been called the “Environmental Decade,” emphasized and systematized the assessment of the environmental impact of such activities as fossil and nuclear power plant construction, forest pesticide spraying, interstate highway development, gas and oil pipeline routing, and offshore oil and gas drilling operations, to name but a few. Up until this time the only systematic assessment done by the Federal Government was the Atomic Energy Commission in the licensing of nuclear power plants as directed by the U.S. Congress (1954). This primarily addressed the radiological impact of the operation of the facility. As a result of NEPA and the so-called Calvert Cliffs Decision (U. S. Court of Appeals, 1971) this was expanded to include such considerations as the environmental effects of possible accidents, transporting radioactive material, water quality changes, and a discussion of possible alternatives to the nuclear facility. We will limit our discussion to the environmental impact as it relates to meteorological factors.