Montreal Protocol and World Ozone Day: Key Achievements and Climate Goals

Montreal Protocol and World Ozone Day: Key Achievements and Climate Goals

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Key takeaways

  • Adopted in 1987, the Montreal Protocol has successfully eliminated 99% of global ozone-depleting substances across 198 UN member states.
  • Through the 2016 Kigali Amendment, member countries aim to phase down climate-warming hydrofluorocarbons (HFCs) to prevent up to 0.5°C of global warming by 2100.
  • India phased out HCFC-141b on 1st January 2020 and plans an 85% reduction in HFC consumption by 2047.
  • Observed every year on 16th September, World Ozone Day emphasizes ultraviolet radiation protection and sustainable cooling innovations.

Why in News

  • Every year on 16th September, countries observe the International Day for the Preservation of the Ozone Layer, also known as World Ozone Day.
  • This year's occasion highlights the historic success and ongoing progress of the Montreal Protocol.

What is the Montreal Protocol?

  • During the 1970s and 1980s, scientists confirmed that chemicals like chlorofluorocarbons (CFCs) were rising into the stratosphere, located 12 to 50 kilometers above Earth.
  • These industrial chemicals were destroying ozone molecules and created a large ozone hole over Antarctica.
  • To tackle this threat, world leaders adopted the Vienna Convention for the Protection of the Ozone Layer in 1985.
  • This convention established a foundation for international scientific research and monitoring, and India joined it in 1991.
  • Building on this agreement, countries adopted the legally binding Montreal Protocol in 1987 to regulate around 100 ozone-depleting substances (ODS) like CFCs and hydrochlorofluorocarbons (HCFCs).
  • India became a member of the Montreal Protocol in June 1992.
  • The protocol defines chemical consumption through the standard equation: Consumption = Production + Imports - Exports - Verified Destruction.
  • It sets distinct and strict phase-out schedules for developed and developing nations based on chemical groups.
  • Recognized as the world's most successful environmental treaty, the protocol has phased out 99% of global ODS emissions.
  • India completely eliminated the chemical HCFC-141b on 1st January 2020, along with CFCs, Carbon tetrachloride (CTC), and Halons.
  • India has also achieved a 67.5% reduction in HCFC production and consumption heading toward 2025.
  • On 16th September 2009, the Vienna Convention and Montreal Protocol became the first treaties in UN history to achieve universal ratification with all 198 UN member states.
  • As industries replaced ozone-damaging chemicals with hydrofluorocarbons (HFCs), they solved one problem but created another, because HFCs act as powerful greenhouse gases.
  • To fix this issue, member nations adopted the Kigali Amendment in 2016 during their 28th meeting in Rwanda.
  • This amendment expands the treaty's power to phase down non-ozone-depleting HFCs, turning the ozone treaty into a key climate action framework.
  • India ratified the Kigali Amendment in 2021 and plans to freeze HFC consumption in 2028, targeting an 85% reduction by 2047 across four steps (10% by 2032, 20% by 2037, 30% by 2042, and 85% by 2047).
  • Experts project that implementing the Kigali Amendment can prevent up to 0.3 to 0.5°C of global warming by 2100.

What is World Ozone Day?

  • In 1994, the United Nations General Assembly (UNGA) declared 16th September as World Ozone Day to commemorate the 1987 signing of the Montreal Protocol.
  • The observance reminds everyone how the ozone layer protects life on Earth from harmful ultraviolet (UV) rays and highlights the need to prevent environmental damage.
  • The theme for 2026 is 'Global action for a cooler planet - Celebrating 10 years of sustainable cooling under the Kigali Amendment to the Montreal Protocol'.
  • This theme emphasizes energy-efficient and climate-friendly cooling technologies while marking a decade of efforts to lower greenhouse gases.
  • India created two online platforms, the Net Zero Portal and the NAPCC Dashboard, to monitor and present its climate progress.
  • The Net Zero Portal allows businesses and government bodies to record their net-zero commitments and progress voluntarily.
  • The NAPCC Dashboard acts as a central hub to review progress across India's national climate missions.

Frequently Asked Questions

  • The Montreal Protocol (1987) is a binding global agreement that regulates and eliminates ozone-depleting substances (ODS).
  • The Vienna Convention (1985) provided the groundwork for international scientific research and cooperation, opening the way for the Montreal Protocol.
  • The Kigali Amendment (2016) legally requires the phase-down of HFCs, directly connecting ozone protection with climate change solutions.
  • India joined the Montreal Protocol in 1992 and ratified the Kigali Amendment in 2021.
  • Celebrated on 16th September, World Ozone Day spreads awareness regarding UV protection, ozone restoration, and sustainable cooling.