Biggest ozone hole above the Arctic
Hole in the ozone layer has reached a record size above the Arctic, and as the reason experts mention many harmful things in the atmosphere and a very cold winter in the stratosphere, as it was issued by the World Meteorological Organization.
Observations from the ground and the data collected by satellites and balloon probes of the Arctic reveal that the ozone column between the onset of winter and the end of March in the area recorded a loss of 40 percent, as the WMO said.
The ozone layer protects the earth from harmful ultraviolet rays. This record of ozone loss scientists explain the harmful gases in the atmosphere and a cold winter at the level of the stratosphere, the second major of the earth’s atmospheric layer just above the troposphere.
In Antarctica, the ozone hole is an annual phenomenon that occurs in winter and spring due to extremely low temperatures prevailing in the stratosphere, while the Arctic weather conditions are much more varies from one to two years and temperatures are always higher.
Under the Montreal Protocol to gradually reduce emissions of harmful things like hlorfluor carbon dioxide and halons used in refrigerators and aerosol, and the WMO hoped that between 2030-2040 the ozone layer outside the polar regions will rebuild and get on the same level as before the 1980. year. For Antarctica this foreseen are for the range from 2045 to 2060. year, while it is expected that the ozone over the Arctic is back to the normal ten to 20 years later.