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what was the significance of • Ozone layer in the 1970's
Weegy: n the mid-1970s, scientists became concerned that chlorofluorocarbons (CFCs) could destroy stratospheric ozone. [ At that time, CFCs were widely used as aerosol propellants in consumer products such as hairsprays and deodorants, and as coolants in refrigerators and air conditioners. In 1978, the U.S. government banned CFCs as propellants in most aerosol uses. Scientists have been monitoring the stratospheric ozone layer since the 1970s. In the 1980s, scientists began accumulating evidence that the ozone layer was being depleted. The ozone hole in the region of the South Pole, which has appeared each year during the Antarctic winter (our summer), often is bigger than the continental United States. Between 1978 and 1997, scientists have measured a 5 percent loss of stratospheric ozone-a significant amount. ] (More)
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Updated 2/16/2013 9:36:58 PM
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lgcn, when you take information from another websites, please make sure to cite the source. You have been reminded many times. Please review the rules.
Added 2/16/2013 6:58:25 PM
Thanks I will make a note of it.
Added 2/16/2013 9:36:58 PM
Silent Spring
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Updated 2/17/2013 6:56:14 AM
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Silent Spring is a book written by Rachel Carson and published by Houghton Mifflin on September 27, 1962. The book is widely credited with helping launch the contemporary American environmental movement.
Added 2/17/2013 6:56:14 AM
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