In the journal Nature on May 16, 1985, three scientists from the British Antarctic Survey announced that they had discovered abnormally low levels of ozone over the South Pole. Their discovery, commonly known as the ozone hole, became a tangible example of mankind’s ability to harm the Earth’s atmosphere, as well as one of the most famous success stories in the history of climate activism. Eager to read when was the first ozone hole discovered. We hope you have got the answer by now. it is 1985.
International community reaction to the first ozone hole discovered.
The ozone layer is a region of the earth’s stratosphere that is rich in oxygen and prevents much of the sun’s most harmful ultraviolet radiation from reaching the planet’s surface. Since the 1970s, scientists had pushed for the regulation of chlorofluorocarbons, chemicals found in everyday items like air conditioners and aerosol sprays, because of its adverse effects on this layer. The Environmental Protection Agency banned the manufacture of CFCs in 1978. However, it was the Nature paper by Joe Farman, Brian Gardiner and Jonathan Shanklin that specifically showed the annual ozone depletion at a point above the Arctic.
The international community reacted unusually quickly, perhaps because the seemingly sudden appearance of a “hole” in the atmosphere led to such a compelling and easy-to-understand story. Within two years, in direct response to the article on nature and confirmatory studies, 46 nations signed the Montreal Protocol and committed to phasing out substances known to cause ozone depletion. All 197 members of the United Nations would eventually ratify the treaty, and as a result, scientists are now predicting that the ozone layer will return to pre-1980 levels before the end of the 21st century. The relative speed and unanimous adoption of the treaty around the world led former UN Secretary-General Kofi Annan to describe the Montreal Protocol as “perhaps the most successful international agreement yet”.