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Scientists didn't knew ozone layer before 1880. It is because of lack of technology at that time.
What else can I help you with?
What year do scientists think the ozone layer will have rebound?
Scientists hope the ozone layer will have recovered by around 2050.
When was the year when you discovered the ozone layer disappearing?
In 1985, we discovered. It was done by Dr Farman.
Is there any improvement of ozone layer in recent year?
Yes, there is. Ozone layer is replenishing.
What year did the hole in the ozone get discovered?
The discovery of the hole in the ozone layer was officially announced in 1985. British scientists reported that the ozone layer above Antarctica was significantly depleted. This discovery led to global concern about the effects of ozone depletion on the environment.
In 1985 was there a hole in the ozone layer?
The ozone layer is the portion of the atmosphere that filters out most of the dangerous UV waves that hit the Earth from the sun. In 1985, scientists discovered a very large hole in the ozone layer above Antarctica.
What year do scientists think the ozone layer will have rebound?
Scientists hope the ozone layer will have recovered by around 2050.
When was the ozone layer discoverd?
The ozone layer was discovered in the year 1913 by the scientists Charles Fabry and Henry Buisson.
In what year do scientists believe that the hole in the Ozone Layer over Antarctica first appeared?
Right after the Great Oxidation Event, when the ozone layer first formed. About 500 million years ago.
When did scientists find a hole in the ozone layer?
The ozone layer was discovered in the year 1985. During that period large amount of CFC's were used without knowing the adverse effect of these fatal chemicals. In 1985 scientists discovered that appreciable thinning of ozone layer is happening over the antarctic region. And thus steps for its recovery were made into action.
In which year was the ozone layer biggest?
The ozone layer covers the entire planet twice a year, every year. That is when it is biggest.
When was the year when you discovered the ozone layer disappearing?
In 1985, we discovered. It was done by Dr Farman.
Is there any improvement of ozone layer in recent year?
Yes, there is. Ozone layer is replenishing.
How fast is the ozone layer growing each year and why?
The ozone layer is growing slow. This is due to ozone depletion by CFC's.
What year did the hole in the ozone get discovered?
The discovery of the hole in the ozone layer was officially announced in 1985. British scientists reported that the ozone layer above Antarctica was significantly depleted. This discovery led to global concern about the effects of ozone depletion on the environment.
In 1985 was there a hole in the ozone layer?
The ozone layer is the portion of the atmosphere that filters out most of the dangerous UV waves that hit the Earth from the sun. In 1985, scientists discovered a very large hole in the ozone layer above Antarctica.
Has size of the hole in the ozone layer changed in recent year?
Yes, it has. Size of ozone layer changes according to the use of CFC's.
When was the massive hole in the ozone layer over the Antarctica first discovered?
The ozone hole first appeared when the ozone layer first appeared. The only variable is the "size" of the hole, and the ozone concentration in the "hole". The pole of the Earth that is experiencing winter receives none of the UV that makes ozone (for like a month or more), and ozone naturally decays with time. TThe ozone hole is a normal feature of our ozone layer. It appears each year when it is winter at one of our poles. So it first appeared when the ozone layer appeared. We first noticed the ozone hole in 1985, above Antartica. One forms over the Arctic pole too when it is winter there. They heal closed again once sunlight reaches the pole. Its not so much the presence or absence of an ozone hole, but its size that is important. It is important to look out for the ozone hole
