Four before Forty – four challenges for the Montreal Protocol on World Ozone Day 2025
It’s almost 100 years since Thomas Midgley Jr. first synthesised chlorofluorocarbons (CFCs). It was 1928 and he was working for General Motors, looking for a safe refrigerant to avoid using flammable or toxic alternatives. General Motors and Dupont soon began producing ‘Freon’ chemicals, which quickly dominated the market for refrigerants and also found wide use […]
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