Environmental policy of the United States Environmental Protection Agency, were people with a history of opposition to the agency they were named to head. Since the environmental movement of the 1970s, the nature of environmental issues has changed. While the initial emphasis was on conventional air and water pollutants, which were the most obvious and easily measurable problems, newer issues are long-term problems that are not easily discernible and can be surrounded by controversy. Acid deposition, in the form of acid rain and dry deposition, is the result of sulfur and nitrogen dioxide being emitted into the air, traveling and landing in a different place, and
Natural Bridges National Monument Solar Power System and maintenance costs by using a photovoltaic system. Also the environmental benefits include a reduction of air and noise pollution compared to diesel generators. The emissions reductions are estimated to be about of sulfur oxides, of nitrogen oxides, of carbon dioxide, and of carbon monoxide annually. Natural Bridges National Monument Solar Power System Natural Bridges National Monument Solar Power System is a demonstration plant using solar cells as the energy source. When it was dedicated in June 1980 by the Utah Governor, it was the world's largest solar plant at 100 kW. It is located in the southeastern portion of