The correct option is A a) The Montreal Protocol
Answer : A
Although it took seven years to come to fruition, the Kigali agreement to amend the Montreal Protocol and substantially limit the emission of hydrofluorocarbons (HFCs) that contribute to global warming represents major progress. The important role played by this group of chemicals, used in refrigeration and air conditioning, is evident from the scientific estimate that without a mitigation plan, HFCs could warm the world by an additional half a degree Celsius by the end of the century. As with other such global compacts on environmental matters, India pressed for a more lenient deadline at the Rwanda negotiations. Ultimately, it agreed to start freezing HFC use in 2028, four years later than its peer club countries China, Brazil and those in Africa,
and achieving maximum reduction by 2047, two years after they do.
In welcome contrast, however, India has ordered the manufacturers of HFC 23 — a by- product of another chemical used in refrigerant gas manufacture and with a staggeringly high contribution to global warming — to now capture and dispose of it at their own cost. The decision is of particular significance, considering the expansion of refrigeration and air conditioning in India with a rise in incomes, leading to higher levels of HFC release into
the atmosphere.