Ozone is commonly thought of in terms of the ozone layer high in the stratosphere. |
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The EU directive concerns the disposal of chlorofluorocarbons, CFCs, which damage the ozone layer if released into the atmosphere. |
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The ozone layer is a thin layer of gas in the stratosphere which effectively screens out most of the harmful UV radiation in sunlight. |
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It is the combination of these two reactions that allows the ozone layer to protect the planet. |
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The resulting chlorine atoms that are generated catalyze the depletion of the ozone layer in the stratosphere. |
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The ozone layer might be damaged by the release of nitrogen oxides from nuclear explosions. |
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The release of chlorofluorocarbons has led to the chemical reaction breaking down the ozone layer. |
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Depletion of the Earth's ozone layer is considered responsible for an increase in the solar ultraviolet irradiance reaching the surface. |
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The stratosphere extends above the troposphere to about 150,000 feet and is the region where the ozone layer is formed. |
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Refrigerators and freezers more than five years old contain gases known as chlorofluorocarbons which damage the ozone layer. |
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The truth was the ozone layer wasn't going to be able to supply a survivable living area. |
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The Caltech scientists suggest certain scenarios in which the impact could be similar to what chlorofluorocarbons inflicted on the ozone layer. |
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Once the spring returns, this chlorine, much of it originating from man-made pollutants like chlorofluorocarbons, disrupts the ozone layer. |
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There is no ozone layer, which on Earth functions as a critical shield from deadly doses of ultraviolet radiation. |
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It eventually reaches the stratosphere, where it causes a thinning of the ozone layer. |
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He was awarded a Nobel Prize in 1995 for his work on the hole in the ozone layer above the polar icecaps. |
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It is a proven fact that the ozone layer filters out much of the harmful radiation from the sun. |
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Many scientists have studied the effects of pollutants on the ozone layer, often with startling results. |
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This video shows the Antarctic ozone layer thinning during 1998, reaching its thinnest in the southern spring. |
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At the end, the heroes walk triumphantly into the sunset, while some kind of outdoor PA system announces that the ozone layer came back. |
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The ozone layer or ozonosphere is generally the region in the upper atmosphere between 15-40 km. |
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Yes, it's been scorching so keep spraying that ozone layer with your tins of hair lacquer! |
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All that hair lacquer skooshed had further reduced the ozone layer and made it an absolute imperative. |
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For those of you not in the know, the ozone layer is a layer of the upper atmosphere lying about 19 to 48 km above the earth's surface. |
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It is possible that the increase in carbon dioxide will saturate the earth's oceans, causing damage to the ozone layer. |
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Many CFCs have been replaced with related materials known as hydrochlorofluorocarbons which reportedly do not interfere with the ozone layer. |
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Political comic Will Durst debuts on AlterNet with some thoughts on the possible advantages of the disappearing ozone layer. |
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The current ozone layer is as a result of equilibrium between breakdown and recombination. |
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The ozone layer is important to humans, who risk skin cancer and other health effects from high exposure to harmful ultraviolet rays. |
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All that hair lacquer skooshed by the likes of Duran Duran and Spandau Ballet at Live Aid had further reduced the ozone layer. |
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Replacement refrigerants have now been developed which are less harmful to the ozone layer. |
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The ozone layer protects the Earth's surface from the sun's harmful ultraviolet rays. |
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Within the ozone layer, this ultraviolet energy is absorbed by a delicate balance of two chemical reactions. |
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The hole in the ozone layer was discovered by British scientists in Antarctica working on atmospheric physics. |
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In the absence of the ozone layer harmful ultraviolet radiation is able to reach the surface of the Earth in higher doses. |
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Every Antarctic spring, a hole appears over Antarctica in the stratospheric ozone layer. |
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Would it be newsworthy if 450 climatologists signed a joint petition saying that the ozone layer was being depleted? |
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The ozone layer is extremely important as it strongly absorbs the ultraviolet radiation from the Sun. |
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Five years ago, the first reports of a hole in the ozone layer over Antarctica were appearing. |
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I heard about a week ago that the hole in the ozone layer over the Antarctic this summer is twice as large as the year before. |
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A few nuclear blasts, holes in the ozone layer or devastating droughts can all be viewed as portends of the earth's final annihilation. |
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In 1985 scientists discovered a gaping hole in the ozone layer over the South Pole. |
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Blame climate change – or even the spring sunshine, or the hole in the ozone layer. |
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The Montreal Protocol banned chlorofluorocarbons and prevented a catastrophic hole in the ozone layer. |
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There was also the fight against chlorofluorocarbons, or CFCs, which caused holes in the ozone layer. |
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In some product groups, VOCs are used in propellant systems to replace substances which were depleting the stratospheric ozone layer. |
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Learn about the stratospheric ozone layer, ozone depletion, and UV radiation. |
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Volcanoes spew forth not-so-welcome gases such as sulphur dioxide that can lead to acid rain and destruction of the ozone layer. |
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We tackled the issue of how to protect the ozone layer and we were successful. |
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This should ensure that progress is made in reducing the quantity of halon for critical uses and thereby accelerate recovery of the ozone layer. |
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Monitoring of the ozone layer over recent years has reached the conclusion that it must be considered seriously endangered. |
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She was involved in negotiating the Montreal Protocol to protect the ozone layer and new legislation and pollution control measures. |
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As a result, the sites contain hazardous materials ranging from old fridges containing freon, which scientists say depletes the ozone layer, to old propane tanks. |
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Some of this oxygen was converted into ozone and the developing ozone layer gave needed protection from disruptively energetic ultraviolet radiation. |
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At the beginning of the 1980s, we all had the life scared out of us with news about the gaping hole in the ozone layer above the South Pole. |
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We have also felt the increase in ultraviolet rays pouring through the hole in the ozone layer located directly above our country. |
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Losses or leaks of these gases have an important environmental impact given their repercussion on the destruction of the ozone layer. |
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It does not damage the ozone layer and does not increase the greenhouse effect. |
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The ozone layer is a layer of gas in the upper atmosphere which shields life on earth from harmful ultraviolet rays from the sun. |
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The purpose of this Protocol was to prohibit the use of solvents and substances depleting the ozone layer. |
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The eco-concept walls are mildew resistant, emit no harmful substances for the ozone layer and have the advantage of being fire retardant. |
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The fourth amendment to the Montreal Protocol on substances that deplete the ozone layer is hereby approved on behalf of the Community. |
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Development of the Strategy came about as a result of a comprehensive review, started in 1994, of the Canadian ozone layer protection program. |
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List of environmental issue links related to air quality, climate, climate change, severe weather and the ozone layer. |
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The Germans are more sensitive than other EU citizens on the issue of climate and the ozone layer. |
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Preliminary studies with atmospheric models suggest that this effect could delay the recovery of the Arctic ozone layer by a decade or more. |
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The ozone layer shields life on Earth from harmful ultraviolet radiation. |
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It would have saved expensive town bypasses, additional roads and parking facilities, not to mention the benefits to the ozone layer and global warming. |
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Blowing agents such as chlorofluorocarbons, and to a lesser extent hydrochlorofluorocarbons, have been identified with the destruction of the earth's protective ozone layer. |
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The phaseout stems from evidence that methyl bromide is an ozone depleter, that is, a substance that destroys the protective ozone layer of Earth's atmosphere. |
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This is why plants could not develop on land until the ozone layer was formed through photosynthesis of plants and other biological organisms in the water. |
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In addition, conventional air conditioners use refrigerants made of chlorine compounds, suspected contributors to the depletion of the ozone layer and global warming. |
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Heretics, they'd be burned at the stake if that were not such a bad thing for the ozone layer. |
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Holes in the ozone layer, or a global breakdown of stratospheric ozone would lead to increasing doses of ultraviolet radiation at the Earth's surface. |
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To keep her hair from falling where it wasn't needed, she had pulled it up to a tight bun and sprayed as much hair spray as the ozone layer allowed. |
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In 1970 he showed that nitrogen oxides of both natural and industrial origin react catalytically with ozone, thus reducing the stratospheric ozone layer. |
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A chain reaction that has received a lot of attention in recent years is the reaction by which Freons deplete the ozone layer that protects us from ultraviolet radiation. |
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The ozone layer high in Earth's atmosphere absorbs much of the UV radiation from the sun, but that which reaches the surface can cause suntans and sunburns. |
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During the 1980s evidence emerged linking the release of chlorofluorocarbons, halons, and other chlorine-based substances with the gradual destruction of the ozone layer. |
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The organization has also focused on CFCs, because of both their global warming potential and their effect on the ozone layer. |
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Since the 1970s an important focus of study has been the ozone layer in the atmosphere above Antarctica. |
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The impacts of the depleted ozone layer on climate changes occurring in Antarctica are not well understood. |
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However, concern was beginning to be expressed about the impact of chloroalkanes and bromoalkanes on the ozone layer. |
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Since the late 1970s, the use of CFCs has been heavily regulated because of their destructive effects on the ozone layer. |
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The ozone layer blocks ultraviolet solar radiation, permitting life on land. |
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Aided by the absorption of harmful ultraviolet radiation by the ozone layer, life colonized Earth's surface. |
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Latitude: the sun's intensity is at its maximum at the equator where the rays shine vertically and thus have a shorter journey through the ozone layer. |
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In addition, increased doses of ultraviolet radiation due to the depletion of the ozone layer may lead to a higher incidence of cataracts and an increased risk of skin cancer. |
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The result would be the destruction of 10 percent of the stratospheric ozone layer within 50 years, Rowland says. |
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Although human behavior modifications can affect UV radiation exposure, the best way to protect the health of the population is to maintain an adequate stratospheric ozone layer. |
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At that time, scientists warned that the release of these substances into the atmosphere could deplete the ozone layer, hindering its ability to prevent harmful ultraviolet rays from reaching the Earth. |
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Globally, it contributes to the greenhouse effect and to the depletion of the ozone layer, where high altitude emissions might be a specific problem. |
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A damaged ozone layer, aka the ozone hole, is one of the most significant environmental problems scientists have faced over the years. |
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Scientists have long been complaining against human indulgence in certain chemicals which damage the ozone layer. |
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The protective ozone layer is within the stratosphere. |
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From the increase in global warming to the reduction of the ozone layer. |
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There were environmental concerns that Halon was contributing to the destruction of the ozone layer. |
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The Commission represents total harmonisation rather than promotion of the environment, the hole in the ozone layer rather than the ozone layer itself and the past rather than our common future. |
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The 1987 Treaty of Montreal protecting the ozone layer was also a weak agreement, but over the past fourteen years, it has been tightened up on every occasion. |
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The whole globe shares the same ozone layer. |
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The nuclear electricity generation chain does not release gases or particles that acidify rains, contribute to urban smog or deplete of the ozone layer. |
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Some phenomena such as the hole in the ozone layer or the glasshouse effect, the consequences of which are highly dangerous, barely worry world populations and political leaders at all. |
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Both instruments are designed to gather information on the chemical processes occurring in the ozone layer, approximately 8 km to 50 km above the Earth's surface. |
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Think of the speed with which nations have responded in recent years to threats such as terrorism, the impact of CFC gases on the ozone layer or avian flu. |
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The hole in the ozone layer, essentially caused by human activity, is one of Europe's greatest environmental concerns and a subject it never hesitates to raise on the international scene. |
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The land has been parched by a hole in the ozone layer. |
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This will ensure that progress is made in reducing the scope of the use of halons for critical uses and thereby accelerating the improvement in the ozone layer. |
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Research is carried out and spacebased technologies are applied primarily to determine the quality of the air and any changes to that quality, and to determine changes in the ozone layer. |
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The Arctic ice pack is thinning, and in many years there is also a seasonal hole in the ozone layer. |
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Damage to the ozone layer reduces plankton reproduction because of its resulting radiation. |
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When the earth's surface and troposphere become warmer the stratosphere will cool down. Hence, the critical temperature for ozone depletion will be reached more often and the ozone layer will be weaker. |
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The presence of the ozone layer may have enabled the development of complex life and life on land, as opposed to life being restricted in the water. |
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The ODS protocols are significant developments because they are the first protocols to provide co-benefits that protect both the ozone layer and the climate system. |
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Within the stratosphere is the ozone layer, a component that partially shields the surface from ultraviolet light and thus is important for life on Earth. |
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Asked if the decrease in the ozone layer could be the worst since ozone holes were first detected over Antarctica in the 1970s, Al-Ghanem said ''yes. |
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Our use of ozone-depleting substances such as chlorofluorocarbons had torn a hole in the ozone layer that protects us from the sun's harmful ultraviolet radiation. |
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The increase appeared to contradict the success of the Montreal Protocol introduced in 1987 to protect the ozone layer by banning production of ozone-depleting substances. |
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Monitoring this radiation is a way of tracking the hole in the ozone layer, and photodiodes that measure UVC are also used as flame sensors and for communication in space. |
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