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Montreal protocol research paper

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The twin papers indicate that efforts to address the first known substantive violation of the international treaty tasked with ensuring stratospheric ozone layer recovery, known as the Montreal Protocol, are working. Following that initial discovery, members of the treaty called for immediate action. China then announced renewed enforcement and inspections measures. Scientists began looking for results. While the amount of CFC in the atmosphere is only a few hundred parts per trillion, it plays a primary role in the formation of the ozone hole over Antarctica each September, and year-round depletion of the stratospheric ozone layer in the mid-latitudes. The new results show that from to , emissions of CFC decreased globally by 18, tonnes per year or about 20, U.
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How saving the ozone layer in 1987 slowed global warming

Montreal protocol research paper
Montreal protocol research paper
Montreal protocol research paper
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What Convinced Ronald Reagan to Take Action on Ozone Hole | Time

Global emissions of a potent substance notorious for depleting the Earth's ozone layer -- the protective barrier which absorbs the Sun's harmful UV rays -- have fallen rapidly and are now back on the decline, according to new research. Two international studies published today in Nature , show emissions of CFC, one of the many chlorofluorocarbon CFC chemicals once widely used in refrigerators and insulating foams, are back on the decline less than two years after the exposure of their shock resurgence in the wake of suspected rogue production. Dr Luke Western, from the University of Bristol, a co-lead author of one of the studies, said: "The findings are very welcome news and hopefully mark an end to a disturbing period of apparent regulatory breaches. If the emissions had stayed at the significantly elevated levels we found, there could have been a delay, possibly of many years, in ozone layer recovery.
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Articles on Montreal protocol

Looking back, environmental issues seem to have become personal for him around that time. The President had a skin cancerous growth on the right side of his nose removed three months after that historic study on the hole in the ozone layer. Between that surgery and his love of being outdoors, riding horses on his California ranch, the President may have been able to see how that it all related to the ozone hole, then-Secretary of State George Shultz told the Ozone Hole filmmakers. Eventually, he got behind the idea of a treaty to phase out chlorofluorocarbons CFCs , the compound linked to the atmospheric damage. In , the U.
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By York University May 14, Researchers drill and measure ice cores in the Actic. Credit: University of Alberta. An international environmental agreement to regulate the use of chemicals depleting the ozone layer may have inadvertently allowed higher levels of other harmful chemicals to flourish, new research co-led by York University and Environment and Climate Change Canada has found.
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