The Montreal Protocol on Substances that Deplete the Ozone Layer was an international treaty signed in 1989 agreeing to stop production and sale of fluorocarbons -- manufactured chemicals that were very useful as coolants and propellants. It is one of the only examples of a truly universal treaty -- signed by 196 countries and the European Union! -- in reaction to a breakthrough in scientific understanding. Why are fluorocarbons bad
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The Montreal Protocol on Substances that Deplete the Ozone Layer was an international treaty signed...
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