0
Thicker atmosphere does not stop UV-B. Only ozone in our atmosphere stops UV-B from damaging the DNA of all surface life on Earth. And even though the ozone hole is a natural phenomenon, the size of the hole is an indication of, it does appear, the effects of Man on this protective ozone layer.
What else can I help you with?
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
When was the first hole in the ozone layer found?
The first hole in the ozone layer was discovered in 1985 over Antarctica by British scientists using data from satellite observations. This led to the establishment of the Montreal Protocol in 1987, an international treaty aimed at phasing out the use of ozone-depleting substances.
How much of the ozone layer do you have right now?
The "ozone layer" is roughly the same condition it has always been in. The amount of ozone in the upper atmosphere varies mainly due to variations in solar activity. UV radiation has serious affects on this layer. Holes form over the poles at the end of each winter due to a lack of sunlight. When the sun returns, the "holes" quickly disappear.
Why is discovery of a hole in the ozone layer a cause for concern?
The discovery of ozone hole led the scientists to search for ways to stop the depletion of ozone layer. Thus various alternated were finded to replace the substances responsible for ozone hole.
Is the hole in the ozone layer the same as global warming?
Yes, they are very similar. Ozone depletion is caused by man (CFCs), and is the overall thinning of the ozone. The "hole" in the ozone layer is over the Antarctic and it is a thinning layer where approximately 66% of the ozone disappears. The hole appears over the Antarctic because ozone needs sunlight to form and the dark and cold Antarctic winters (much colder than Arctic winters) form ideal conditions for ozone depletion and thinning.
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
When was the first hole in the ozone layer found?
The first hole in the ozone layer was discovered in 1985 over Antarctica by British scientists using data from satellite observations. This led to the establishment of the Montreal Protocol in 1987, an international treaty aimed at phasing out the use of ozone-depleting substances.
How much of the ozone layer do you have right now?
The "ozone layer" is roughly the same condition it has always been in. The amount of ozone in the upper atmosphere varies mainly due to variations in solar activity. UV radiation has serious affects on this layer. Holes form over the poles at the end of each winter due to a lack of sunlight. When the sun returns, the "holes" quickly disappear.
Why is discovery of a hole in the ozone layer a cause for concern?
The discovery of ozone hole led the scientists to search for ways to stop the depletion of ozone layer. Thus various alternated were finded to replace the substances responsible for ozone hole.
We all know that Ozone layer has a hole is it possible to make an artificial Ozone layer above it so we are well protected?
No, we cannot make an ozone layer above it, below it, and we can't fill it in. We just have to stop dumping things into the atmosphere.There is too much energy above the ozone layer to let ozone survive.There is too much water vapor below the ozone layer to let ozone survive.We'd burn up all our fossil fuels trying to get ozone "up there", which would destroy more ozone than we ever made.
Is the hole in the ozone layer the same as global warming?
Yes, they are very similar. Ozone depletion is caused by man (CFCs), and is the overall thinning of the ozone. The "hole" in the ozone layer is over the Antarctic and it is a thinning layer where approximately 66% of the ozone disappears. The hole appears over the Antarctic because ozone needs sunlight to form and the dark and cold Antarctic winters (much colder than Arctic winters) form ideal conditions for ozone depletion and thinning.
How much the ozone layer is affected by human activity?
Human activity has significantly affected the ozone layer through the release of ozone-depleting substances such as chlorofluorocarbons (CFCs). These chemicals break down ozone molecules in the stratosphere, leading to the formation of the ozone hole. International efforts like the Montreal Protocol have been successful in reducing the production and consumption of these harmful substances, resulting in gradual recovery of the ozone layer.
What have humans done to damage the ozone layer?
The ozone layer is damaged over the poles. It is due to the low temperature.
What is threatening the ozone layer?
The sun's solar activity has a large impact on the ozone layer. So much so, that a lack of sun hitting the ozone layer near each pole in the winter months causes a thinning we refer to as a hole. This natural event heals itself shortly after the sun returns. A large enough solar flare could cause major issues with this layer, as it did n 1859 (the year of our largest ozone layer "hole"). The use of CFC's is also believed, by some, to help enlarge this event.
What is the reason for the imbalance of the ozone layer?
The ozone layer is not "imbalanced". There is a region of low ozone concentration (the "ozone hole") that forms at the pole that has little-to-no UV from the Sun to reform ozone. The concentration at any point in the ozone layer is a function of how much UV is arrving of a wavelength of 215nm or shorter, how much scavengers / catalysts are present (including water vapor), and the local temperature (ozone also decays spontaneously without any other molecule present with time).
Where is the hole in the ozone found?
Ozone layer is depletion is happening in the stratosphere of the earth's atmosphere. It is majorly concentrated over Antarctica's atmosphere.
What is ozone thinning?
This is a thinning (by about 2/3, of the ozone over the Antarctic during the spring time, towards the end of the long winter night in the south pole. There is no actual hole in the layer. This has occurred for centuries, in fact the thinnest we know the layer has ever been is in 1858, before man started using cfc's. A similar thinning occurs, to a much smaller extent in the Arctic during the end of it's winter night also. The thinning is much smaller in the Arctic and NASA even reffers to this thin area as the "Dimple" due to the small size.
