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Information × Registration Number 2107U001526, Article popup.category Thesis Title popup.author popup.publication 01-01-2007 popup.source_user Сумський державний університет popup.source http://essuir.sumdu.edu.ua/handle/123456789/7975 popup.publisher Видавництво СумДУ Description The problem of the ozone holes became known for mankind at the 80-th years last century. Ozone loss was first detected in the stratosphere over Antarctica. In 1985, Vienna Conception related to the ozone layer protection was proclaimed. In 1987, one hundred and forty nine nations signed the Montreal Protocol. But these actions didn’t solve the problem. The ozone holes exist and increase. The biggest ozone hole over Antarctica reached 24 million square kilometers in 2005. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/7975 popup.nrat_date 2025-05-12 Close