With reference to Montreal Protocol on Substances that Deplete the Ozone Layer consider the followin...........

Environment and Ecology Environment- Institutional Structure

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With reference to Montreal Protocol on Substances that Deplete the Ozone Layer, consider the following statements:

1. It proposes reduction in usage of Hydrofluorocarbons (HFCs) which have high ozone depletion potential.

2. Halons used in defence sector, are exempt from Montreal Protocol.

3. It is a protocol under the Vienna convention for the protection of Ozone layer.

Which of the statements given above is/are correct?

1 and 2 Only

2 and 3 Only

1 and 3 Only

All of the above

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Explanation:

The Montreal Protocol on Substances that Deplete the Ozone Layer (a protocol to the Vienna Convention for the Protection of the Ozone Layer) is an international treaty designed to protect the ozone layer by phasing out the production of numerous substances that are responsible for ozone depletion.For example, Chlorofluorocarbons (CFCs),Hydrochlorofluorocarbons (HCFCs),
Carbontetrachloride (CTC) and halons.Hydrofluorocarbons (HFCs) are not Ozone depleting and replaced CFCs and HCFCs;however, their Global Warming Potential is very high. Since HFCs replaced HCFCs and CFCs, the talks of HFCs being in Montreal protocol owing to its success went on for years. In November 2015, the 197 Parties to the Montreal Protocol agreed to begin work on an amendment that will reduce the global production and consumption of HFCs at the 27th Meeting of the Parties (MOP), held in Dubai.Halons, were earlier used in fire extinguishers. However they have been phased out under Montreal protocol except their usage in Defence sector, which is exempt from Montreal Protocol.