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What is the ozone layer?
The ozone layer is made up three oxygen atoms. The ozone protects life on Earth from the UV rays. Near Earth's surface the ozone is created by cemical reactions. The ozone layer is a concentration of ozone molecules in the stratosphere.The stratosphere, the next higher layer, extends about 10-50 kilometers above the Earth's surface. About 90% of the planet's ozone is in the ozone layer. -
Obervations
Explorers Recorded observations clouds in the polar stratosphere. These observations gave the first clues that there was a problem with the ozone layer. -
British Scientist
British scientist G.M.B Dodson began to measure the amount of ozone. The ozone was formed in the higher regions of the stratosphere.Dobson's measurements helpedd scientist the normal amount of ozone that sould be in the stratosphere. -
Chemicals
For over 50 years chlorofluorocarbons were thought of as miracle substances. They are stable, nonflammable, low in toxicity, and inexpensive to produce. Reseachers started to investigate the effects of various chemicals on the ozone layer, particularly CFCs, which contain chlorine. -
Pollution
Since the mid 1980s the ozone layer has been highly impacted by the pollution. During the summer and spring when the sun shines for long peroids of the day chlorine reacts with ultraviolent rays destroying the ozone layer. -
First Documentation of the Antarctic Ozone Hole
NSF-funded study of the phenomenon alerted the world to the danger of chlorofluorocarbons. It protects the ultraviolent radation. The ozone layer vcan have harmful effects on a range of life forms from the bacteria. -
NASA
NASA sciencetist used satellite data to demostrate that the ozone hole is a regional scale Antarctic phenomenon. -
National Medal of Science
Suasn Solomon took observations that advance the understanding of the global ozone layer and changed the direction of the ozone layer.