The reason for this is the Montreal Protocol to reduce consumption and production of hydrofluorocarbons that came into effect in 1989 and to which crucial amendments were made in October 2016 

Congress leader Jairam Ramesh recently emphasised India’s noteworthy efforts in joining the 2016 modifications to the Montreal Protocol during a statement on environmental development. As a former environment minister, Ramesh emphasised the progress made under the Manmohan Singh administration, stressing the importance of pollution, biodiversity loss and climate change to the entire world. The good news he shared concerned the possibility of returning the ozone layer to levels seen in 1980 by 2040 globally. This positive perspective results from the application of the Montreal Protocol, which was started in 1989 and underwent significant modifications in October 2016.

Ramesh recapped the difficulties India encountered in complying with these modifications, emphasising the crucial part that President Obama and Prime Minister  Manmohan Singh’s joint statement on 27 September 2013, played. He emphasised the agreement’s continuity with Prime Minister Narendra Modi, basically restating the Obama-Singh bargain, notwithstanding the early criticism of India’s stance. The achievement of the Montreal Protocol in lowering the production and use of hydrofluorocarbons—essential for maintaining the ozone layer—reflects a major advancement in resolving environmental issues worldwide. At the 28 Meeting of the Parties in Kigali, Rwanda on 15 October, 2016, the Parties to the Montreal Protocol reaffirmed their commitment to phase down HFCs, with nations endorsing a timeframe for an 80–85 per cent decrease by the late 2040s.