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Viking I landed on Mars, the Ramones released their first album, the Soweto Uprising began in South Africa, North and South Vietnam reunified to become the Socialist Republic of Vietnam, and Gerald Ford was in the White House. 1976: The same year scientists discovered that refrigerant chemicals, chlorofluorocarbons, better known as CFCs, were responsible for creating a hole in the ozone layer was also the last time when global average temperatures were below the 20th century norm.
Hence, the earth has now experienced 353 consecutive months – or an astonishing 38 years in a row – of above average temperatures. In terms of hot and cold spells, snowfall patterns and the number of extremely hot or cold days, there are millions of people alive today who have no direct experience of the kind of planet their parents grew up on.