The Vienna Convention for the Protection of the Ozone Layer safeguards human health and the environment.
Changes in the amount of ultraviolet radiation from the Sun affect the ozone layer.
The ozone layer protects living things on the Earth's surface from the Sun's ultra-violet radiation.
Many old fridges contain chemicals called Chlorofluorocarbons (CFCs) which damage the Earth's ozone layer.
CFCs are banned under the Montreal Protocol on Substances that Deplete the Ozone Layer.
The thinning of the ozone layer presented risks that were widely accepted: people fear skin cancer.
He supported research into saving the ozone layer and was interested in communication with other possible worlds.
The Montreal protocol, which banned various ozone-depleting chemicals, has left the ozone layer's long-term prospects looking quite bonny.
Current research suggests, though, that any risk to the ozone layer is probably not sufficient reason to abandon the idea.
One reason for rejecting sulphate hazing out of hand might be the damage it could do to the ozone layer.
The Montreal Protocol is the international agreement designed to protect the ozone layer by phasing out production of Cfc's and halons.
But fewer ozone-eaters in the lower atmosphere mean that the ozone layer should eventually heal itself, perhaps by 2050 or so.
And that gas released into the atmosphere means faster erosion of the ozone layer, possibly speeding up the process and making matters even worse.
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The main reason behind the depletion of the Ozone layer is industrial pollution which is produced by some of the world most industrialized states.
The hole is a thinning area in the ozone layer over Antarctica and the size of the hole varies every year depending on weather conditions.
This is because it takes years for the compounds to reach the ozone layer's home in the stratosphere, 15-50 kilometres (10-30 miles) above the earth.
Dinosaur wind contained a high proportion of methane gas - powerful enough to damage the ozone layer, said the China Youth Daily quoting a French scientist.
It contributed important new understanding on subjects such as the chemistry of the protective ozone layer and the cooling effect volcanoes can exert on the global climate.
During the dinosaurs' time on Earth, "the atmosphere became charged with methane, which finally damaged the ozone layer and brought about great changes in the vegetation, " it added.
As part of an agreement among nearly 200 nations 23 years ago, the United States agreed to prohibit chlorofluorocarbons, or CFCs, which are implicated in depleting the ozone layer.
Venezuelan environmentalist Erik Quiroga believes the storms could help repair the damaged ozone layer and is campaigning for the entire ecosystem that produces the storms to be recognized as a Unesco World Heritage site.
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The proposal sent environmental advocates through the ozone layer.
Talks are complicated by the fact that -- unlike the ozone layer, in which it was clear solar rays that got through cause cancer -- climate change's health effects are generally indirect.
Nitrous oxide is also considered a greenhouse gas and is 310 times more dangerous to the Earth's ozone layer than carbon dioxide, said Joseph Johns, chief of the U.S. attorney's environmental crimes section.
He experienced firsthand the impact of humanity on the environment when under the hole in the ozone layer at the South Pole, the harsh ultraviolet rays from the sun burned his skin and permanently changed the color of his eyes.
While the ozone layer in the upper atmosphere plays an important role in limiting harmful ultraviolet light reaching the Earth's surface, low-level ozone is a pollutant that is harmful, causing respiratory problems in animals as well as well-documented cases in humans.
By the time the makers of cigarettes were fighting against legislation on secondary smoking and the makers of chlorofluorocarbons against regulations to protect the ozone layer, their efforts had coalesced into a general attack on the environmental movement and the regulatory bodies it had brought into being.
Metop's suite of instruments retrieve a range of data - from the temperature and water content of the different layers in the atmosphere to the speed of the winds whipping across the ocean, and from the health of the ozone layer to the spread of volcanic ash plumes across the sky.
The 1988 comedy was inspired by The Buddy Deane Show, a Baltimore teen dance showcase of the early and mid-'60s, and what turned Waters on was the fusion of rock 'n' roll with outlandish middle-class tackiness especially the high, laquered hairstyles that doubtless contributed to the erosion of the ozone layer.
European customers want to replace tetrabrom with nonhalogenated, or more ozone-layer-friendly, flame retardants.
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