Monreal'skiy protokol - honoris causa

The problems of refrigerants application in the context of their environmental impact are examined. The single most successful international agreement to date that is the Montreal Protocol on substances depleting the ozone layer was agreed 30 years ago in September, 1987. The Protocol included chlorofluorocarbons (CFCs) and halons in the list of controlled substances and attributed unequivocally the global ozone layer depletion registered since 1970, to the appearance of chlorine and bromine molecules in the Earth’s atmosphere. The prohibition of CFCs and halons entered into force on January 1, 1996. A routine phase out of hydrofluorocarbons (HFCs) is expected by 2030. An alternative decision to replace CFCs and HCFC22 is hydrofluorocarbons (HFCs) that don’t deplete the ozone layer, but they have a rather high GWP. In the framework of the Kigali amendment of 2016 and in elaboration of the Paris climate agreement of 2015 an obligatory phase out of HFC production during subsequent 20 years has been adopted with the aim to prevent a catastrophic climate warming of our planet at least up to 0.5 degrees Celsius. As an alternative decision hydrofluoroolefins (HFOs) and mixtures of HFOs with HFCs are offered to replace HFCs (R134a, R404A, R410A and others). Pure hydrofluoroolefins practically don’t impact on the global warming, they are lowtoxic but firehazardous.

Монреальский протокол, хлорфторуглероды, гидрофторуглероды, гидрофторолефины, Парижское климатическое соглашение, Кигалийская поправка