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Q: Why wasn't ozone depletion a problem until the 20th century?
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How long does ozone stay in the atmosphere?

Ozone is a very unstable molecule. The energy required of formation of ozone is much greater than the reverse process that is the formation of oxygen and nascent oxygen. However there is an ongoing process of formation as well as depletion in the ozone layer which makes its concentration in the ozone layer constant. However due to the CFC's the rate of depletion is increasing thus creating an ozone hole in the ozone layer.


What are some objections to controlling ozone depletion?

Not saying this is an extensive list of excuses, but here are some: * Denialists - Man is not a big enough player to have caused ozone depletion, to any significant amount, much less be able to overcome what is likely a massive natural occurance. * Controlling gases that deplete ozone only serve to line the pockets of the chemical companies whose patents on the "recognized offenders" (eg. CFCs) had expired - it is all a hoax. * We will have to do something different - people will be put out of jobs. * We don't know what all the causes are - we should study until we know what all the causes are, then attack them in order of their effects. * Controlling the depletion of ozone will require controlling population - giving land and water back to forests, and severely curtailing any sort of industry.


What time of the year is the worst part for ozone problems?

For the ozone layer, depletion is a continuing problem, that knows no season. When it is winter at a pole, it forms an ozone hole. The size of the ozone hole is a function of how long it has been since it received UV-C from the Sun, and how many natural and man-made contaminants are present to accelerate its natural decay. For ozone in smog, summer is the worst time, when the most violet or more energetic light is available to photo-produce ozone from NOx and unburned fuel.


How is carbon dioxide affecting the ozone layer when it is a heavy gas?

Carbon dioxide is causing the temperature of the ozone layer can cool. This allows the CFC's to accelerate the ozone depletion.


How much of ozone layer has been destoryed until now?

Ozone over the poles has been destroyed. It is due to the fact that ozone is susceptible to low weather.

Related questions

How long does ozone stay in the atmosphere?

Ozone is a very unstable molecule. The energy required of formation of ozone is much greater than the reverse process that is the formation of oxygen and nascent oxygen. However there is an ongoing process of formation as well as depletion in the ozone layer which makes its concentration in the ozone layer constant. However due to the CFC's the rate of depletion is increasing thus creating an ozone hole in the ozone layer.


What are some objections to controlling ozone depletion?

Not saying this is an extensive list of excuses, but here are some: * Denialists - Man is not a big enough player to have caused ozone depletion, to any significant amount, much less be able to overcome what is likely a massive natural occurance. * Controlling gases that deplete ozone only serve to line the pockets of the chemical companies whose patents on the "recognized offenders" (eg. CFCs) had expired - it is all a hoax. * We will have to do something different - people will be put out of jobs. * We don't know what all the causes are - we should study until we know what all the causes are, then attack them in order of their effects. * Controlling the depletion of ozone will require controlling population - giving land and water back to forests, and severely curtailing any sort of industry.


What time of the year is the worst part for ozone problems?

For the ozone layer, depletion is a continuing problem, that knows no season. When it is winter at a pole, it forms an ozone hole. The size of the ozone hole is a function of how long it has been since it received UV-C from the Sun, and how many natural and man-made contaminants are present to accelerate its natural decay. For ozone in smog, summer is the worst time, when the most violet or more energetic light is available to photo-produce ozone from NOx and unburned fuel.


Why will the ozone layer hole exist until the 22nd century?

Because there has been an ozone hole (in all likelihood) for 500 million years, every year.


How is carbon dioxide affecting the ozone layer when it is a heavy gas?

Carbon dioxide is causing the temperature of the ozone layer can cool. This allows the CFC's to accelerate the ozone depletion.


Can R34a refrigerant be released into air safely?

R134a is 1,1,2-Tetrafluoroethane. It does not contain either chlorine or bromine, so the recognized ozone depletion pathways do not apply to this molecule. This compound is extremely stable, and will be retained in the atmosphere until it diffuses to the "ozone layer", where it will be broken down by UV-C. What the fluorine will bond with will be anything except oxygen, ozone, or nitrogen if there is anything available.


Will you die when the ozone layer breaks?

Yes, you will. There is a lot of time until the ozone breaks up.


How much of ozone layer has been destoryed until now?

Ozone over the poles has been destroyed. It is due to the fact that ozone is susceptible to low weather.


Can you show me some good slogans for protection of ozone layer?

As the ozone layer fritters away, help make a difference everydayThink SPF 45 is too thick? Wait until we have SPF 6000 when the Ozone is gone.Earth is an Oh!!! zone, without ozoneReduce depletion of ozone, otherwise you will be in the Redzone.• Earth without ozone is like a king without a throne."""I PERSONALLY THINK THAT THESE SLOGANS ARE THE BEST!! BECAUSE I HAVE SEARCHED TE WHOLE INTERNET BUT I AM NOT ABLE TO FIND BETTER THAN THESE ...!! BUT IF YOU ARE PLEASE IMPROVE MY ANSWER SO THAT OTHERS CAN GET NICE ANSWERS ANS PLEASE BE KIND ENOUGH NOT TO RITE ABUSES!!!


How long will it take until the Ozone layer breaks down if people don't do anything about it?

See "When will the ozone layer be gone?"


Is it hard to prove that ozone depletion is attributable to humans?

Short Answer: It is impossible to prove anything in Science. Science only disproves its theories.Since banning CFCs, the "hole" in the ozone layer has stopped increasing in size at a large rate. Some of this "improvement" may be solar cycle related, including the size of the "hole". But we won't be sure until another decade or so, when CFCs are less than their current 82% of chlorine-containing compounds in the atmosphere, and if the ozone hole (as an indicator of ozone layer health) starts getting smaller at maximum size. See the link below for more.


Can the hole in the ozone layer be closed?

Yes, it closes up naturally after the sun returns to the area each spring. Without the sun, it is impossible to maintain the levels of ozone at the poles, thus the thinning occurs each winter until the "hole" occurs late winter or early spring. As long as we have sunlight and oxygen, the hole will close each year naturally.