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validation in 1985, when a crew of English scientists found a hole within the ozone layer over Antarctica that was later linked to CFCs. CFCs have been generally present in refrigerants, solvents, propellants, and foam-blowing agents before the Montreal Protocol was agreed on in the Nineteen Eighties- a global dedication to phase out ozone-depleting chemical compounds that was universally ratified by all nations that participate in the UN.

In the Eighties, scientists found that the ozone layer was thinning in the decrease stratosphere, with particularly dramatic ozone loss—often called the “ozone hole”—within the Antarctic spring (September and October). It takes many years to cleanse CFCs and other ozone depleting

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