Since there is no ozone hole at either pole about half the year, the answer is "Zero". Beyond this, we have only ~20 years worth of data, new and improved methods of determining the size of the hole, and shifting definitions of what is an "ozone hole". But for the most part, the smallest holes were the oldest recorded ones.
Depletion is depletion, everywhere. The size and duration of the ozone hole is a symptom of both how much water surface is located below it, and contaminants that require visible light to be photoactivated into ozone destruction. Don't be distracted by the size of the ozone hole.
Winter, to early spring.
Ozone Layer the UV Blocker.Ozone today - Oxygen tomorrow.Ozone now Oxygen later.Ozone is harmful to health but layer is good.Ozone and Carbon Monoxide makes Carbon Dioxide and Oxygen.Make love not Ozone.Deal today with Ozone for A Better Tomorrow.Vote for controlling gases harmful to Ozone layer.Regulate gases that harm Ozone layer.Preserve Ozone layer - it protects us.Preserve our Ozone layer.61 trees per person is not enough.Flying above 25000 feet / 7.5 km only occurs for special circumstances. Fuel economy in those aircraft is still important. Both water vapor and loss of oxygen due to combustion help deplete ozone. The higher you go routinely, the stronger the depressive effect.Vigilance for new compounds in low ozone concentration areas of the ozone layer, and global ban for those compounds that have already been identified (such as CFCs)... to the point of providing a subsidy in third-world countries to use safer alternatives exclusively.Find those people that think blowing sulfur compounds into the upper atmosphere to stop "global warming" is a good idea, and the subsequent complete destruction of all ozone instantly anywhere nearby, and slap them."Ozone schmozone, I made you stewards of this planet. Even a cat can be taught not to soil its nest. What is wrong with you sons and daughters of 'Adam and Eve' anyway?"Will that fit on a bumper sticker?Act as a whole to prevent the hole. By the "hole", I mean the hole in the ozone layer.How do u save the ozone layerSave nature, make future!Save ozone save your zone!
It is called the Lesser Antillean Thread Snake. It is small enough to squeeze through a hole one eighth of an inch in diameter.
errr....... i dont know if its a 15 or a 18... which ever 1 it is... its really scary
Ozone can spread. Ozone replenishment is a natural process.
The presence of an ozone hole was first detected by the Nimbus-7 satellite and the Total Ozone Mapping Spectrometer (TOMS) instrument in the mid-1980s.
The name of the hole is ozone hole. It is the thinning of ozone layer.
Ozone hole is the thinning of ozone layer. It is due to ODS.
a hole in the ozone layer.
Ozone replenishment is a natural process. It depends upon the people if they avoid using ODS.
People living in regions near the poles, such as Antarctica and the Arctic, are most likely to be affected by an ozone hole. This is because the conditions for ozone depletion are more favorable in these areas due to factors like low temperatures and polar stratospheric clouds.
Ozone hole was discovered by Joseph Farman. He discovered the ozone hole over Antarctica.
The Antarctic ozone hole is not useful. It was harmful.
yes, and it was the "antarctic ozone hole"ozone layer
CFC's contribute to ozone hole. They react with the ozone.
To stop ozone hole, curb CFC's. They destroy ozone.