EVERYDAY SCIENCE

Detailed explanation-1: -The Montreal Protocol, finalized in 1987, is a global agreement to protect the stratospheric ozone layer by phasing out the production and consumption of ozone-depleting substances (ODS).

Detailed explanation-2: -The Montreal Protocol on Substances that Deplete the Ozone Layer (the Montreal Protocol) is an international agreement made in 1987. It was designed to stop the production and import of ozone depleting substances and reduce their concentration in the atmosphere to help protect the earth’s ozone layer.

Detailed explanation-3: -Amendment to Address HFCs under the Montreal Protocol Under the amendment, developed countries will reduce HFC consumption beginning in 2019. Most developing countries will freeze consumption in 2024, with a small number of developing countries with unique circumstances freezing consumption in 2028.

Detailed explanation-4: -Chemical compounds that cause ozone layer depletion are called Ozone Depleting Substances (ODSs). Examples of ODSs are chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), carbon tetrachloride, methyl chloroform, hydrobromofluorocarbons, halons, etc. Chlorofluorocarbons are the most abundant ODSs.

Detailed explanation-5: -What is the difference between Montreal and Kyoto Protocol? While the Montreal Protocol was established to phase out substances that deplete ozone, the Kyoto Protocol was set in place to reduce the emissions of greenhouse gases, with the exception to ozone depleting substances.