The ozone hole of the Earth is shrinking, and it is the smallest since 1988.
Here is a rare piece of good news about the environment: A huge hole in the protective ozone layer of the Earth is shrinking, and since 1988 it has dried on its smallest peak, NASA scientists have said.
The biggest hole in September this year was about 7.6 million square meters wide, almost two and a half times the size of the United States. But it was 1.3 million square miles short compared to the previous year, scientists said, and has shrunk more since September.
Thanks to the growth of normal weather conditions in the Stratosphere from 2016, because it helped in removing chemicals such as chlorine and bromine in hot air which used to eat on ozone layer, scientists said. But since the mid-1980s, global efforts of the overall reduction of holes can be detected to ban the emissions of ozone-depleting chemicals.
NASA's Goddard Space Flight Center's Chief Earth Scientists Paul A. Newman said, "The weather conditions on Antarctica were a bit weak and the warmer temperatures declined, causing the loss of ozone to slow down." "This is like a storm, in a few years less hurricanes, which come on the shore, it is a year in which the weather conditions have become better ozone (formation)."
This news comes after the 30th anniversary of the search of the hole, due to which in 1987 the Montreal Protocol - a landmark international agreement, made major global efforts to end the use of ozone-devalued chemicals. The decline of the ozone layer was primarily taking place on Antarctica, and became a special cause of concern for people living in the Southern Hemisphere. Ozone, a colorless gas, protects the Earth from harmful ultraviolet radiation, which can cause disease, high levels of skin cancer and cataracts, as well as inhibit the growth of plants, scientists say.
Scientists first realized that chlorofluorocarbons were wearing thin ozone layer above Antarctica in the 1970s. During the mid-1980s and 1990s, the ozone hole became a worldwide sensation, with the horrifying sense, people supported the fight of scientists against its development. The public believed that the welfare of the scientists is happening in the South Pole, thinking that whether the holes which were blind or their skin damage, will be burned by ultraviolet radiation while studying. Increasing fear of skin cancer and ozone holes worsened due to deteriorating 24 countries to sign its formation on the Montreal Protocol. This number eventually increased to 197.
It was a rare scientific agreement, the scientists say, because it was actually done so what to do: take action in the direction of holes in the ozone layer. Thursday's findings show that the world is moving forward towards doing just that.
"It is extremely beneficial because it was basically just a scientific effort, and then we were able to explain to society that this was a problem - what would happen if we do not deal with it," said Chemist Mario Molina , Who was awarded the Nobel Prize for his role in the discovery of an integral ozone hole and his research in 1995.
In 2014, UN scientists credited the recovery of ozone layer to the phases of the chemicals used in refrigerators, air conditioners and aerosol cans in the 1980s. But chlorofluorocarbons have long life span, and can still float in the atmosphere after about 100 years, Newman said. Scientists estimate that the ozone layer will not return in the 1980s until 2070, they said.
In June, scientists identified the potential risk for recovery, believe in delocoromethane - an industrial chemical with the power to destroy ozone - doubled in the environment in the last 10 years. According to a study published in the Nature Communications Journal, if its concentration continues, it can delay the generality of the Antarctic ozone layer for 30 years.
According to NASA, the ozone hole was the largest in 2000, when it was 11.5 million square miles wide.
Created by mohammad afsar
Copyright 2017. All right reserved.
Here is a rare piece of good news about the environment: A huge hole in the protective ozone layer of the Earth is shrinking, and since 1988 it has dried on its smallest peak, NASA scientists have said.
The biggest hole in September this year was about 7.6 million square meters wide, almost two and a half times the size of the United States. But it was 1.3 million square miles short compared to the previous year, scientists said, and has shrunk more since September.
Thanks to the growth of normal weather conditions in the Stratosphere from 2016, because it helped in removing chemicals such as chlorine and bromine in hot air which used to eat on ozone layer, scientists said. But since the mid-1980s, global efforts of the overall reduction of holes can be detected to ban the emissions of ozone-depleting chemicals.
NASA's Goddard Space Flight Center's Chief Earth Scientists Paul A. Newman said, "The weather conditions on Antarctica were a bit weak and the warmer temperatures declined, causing the loss of ozone to slow down." "This is like a storm, in a few years less hurricanes, which come on the shore, it is a year in which the weather conditions have become better ozone (formation)."
This news comes after the 30th anniversary of the search of the hole, due to which in 1987 the Montreal Protocol - a landmark international agreement, made major global efforts to end the use of ozone-devalued chemicals. The decline of the ozone layer was primarily taking place on Antarctica, and became a special cause of concern for people living in the Southern Hemisphere. Ozone, a colorless gas, protects the Earth from harmful ultraviolet radiation, which can cause disease, high levels of skin cancer and cataracts, as well as inhibit the growth of plants, scientists say.
Scientists first realized that chlorofluorocarbons were wearing thin ozone layer above Antarctica in the 1970s. During the mid-1980s and 1990s, the ozone hole became a worldwide sensation, with the horrifying sense, people supported the fight of scientists against its development. The public believed that the welfare of the scientists is happening in the South Pole, thinking that whether the holes which were blind or their skin damage, will be burned by ultraviolet radiation while studying. Increasing fear of skin cancer and ozone holes worsened due to deteriorating 24 countries to sign its formation on the Montreal Protocol. This number eventually increased to 197.
It was a rare scientific agreement, the scientists say, because it was actually done so what to do: take action in the direction of holes in the ozone layer. Thursday's findings show that the world is moving forward towards doing just that.
"It is extremely beneficial because it was basically just a scientific effort, and then we were able to explain to society that this was a problem - what would happen if we do not deal with it," said Chemist Mario Molina , Who was awarded the Nobel Prize for his role in the discovery of an integral ozone hole and his research in 1995.
In 2014, UN scientists credited the recovery of ozone layer to the phases of the chemicals used in refrigerators, air conditioners and aerosol cans in the 1980s. But chlorofluorocarbons have long life span, and can still float in the atmosphere after about 100 years, Newman said. Scientists estimate that the ozone layer will not return in the 1980s until 2070, they said.
In June, scientists identified the potential risk for recovery, believe in delocoromethane - an industrial chemical with the power to destroy ozone - doubled in the environment in the last 10 years. According to a study published in the Nature Communications Journal, if its concentration continues, it can delay the generality of the Antarctic ozone layer for 30 years.
According to NASA, the ozone hole was the largest in 2000, when it was 11.5 million square miles wide.
Created by mohammad afsar
Copyright 2017. All right reserved.
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