Noise pollution is unwanted or harmful sound that intrudes upon human or other faunal activity. Noise pollution is almost entirely human generated, whether by machine sources or amplified sound of human creation. Approximately ninety percent of all such intrusive sound arises from such transport devices as motor vehicles, aircraft and rail activities. Noise pollution gives rise to an assortment of adverse human health effects as well as disruption of faunal activity. Regulation of noise pollution began in a systematic way in the United States with enactment of the Noise Control Act of 1972. Within the next 22 years a number of other national governments had emulated the U.S. initiative, including Netherlands (1979), France (1985), Spain (1993), and Denmark (1994). Noise pollution can also occur underwater, where man made sound may disrupt communication and echo-location for marine mammals and other fauna.
In the Arctic, people frequently see unique and beautiful optical phenomena. The atmospheric conditions that can lead to the development of these...
Atmospheric lapse rateLast Updated on 2013-03-31 at 05:11
The atmospheric lapse rate ( ) refers to the change of an atmospheric variable with a change of altitude, the variable being temperature unless specified... More »
Noise pollutionLast Updated on 2012-08-31 at 12:11
Noise pollution is unwanted or harmful sound that intrudes upon human or other faunal activity. Noise pollution is almost entirely human generated, whether by machine sources... More »
MicroclimateLast Updated on 2012-08-21 at 16:31
Microclimate is the set of meteorological parameters that characterize a localized area. The scale of geography associated with a microclimate is on the order of one square... More »
MeteorologyLast Updated on 2012-08-21 at 16:08
Meteorology is the scientific study of the atmosphere and physical processes of interaction with the Earth's crust, oceans and outer space. Meteorological phenomena are... More »
Dark side of insulationLast Updated on 2012-05-17 at 02:07Building insulation has become a modish activity in the western world since the 1980s. Considerable benefits can accrue in energy conservation, occupant comfort and reduction of... More »