India achieves complete phase out of one the most potent ozone depleting chemical

News: India has successfully achieved the complete phase out of Hydrochlorofluorocarbon (HCFC)-141 b


About Hydrochlorofluorocarbon (HCFC)-141 b

  • It is a chemical used by foam manufacturing enterprises.

Environmental Benefits of phase out:

  • Will assist the healing of the stratospheric ozone layer,
  • Will help towards the climate change mitigation

Additional Information

Ozone Layer:

  • Ozone layer, also called ozonosphere is a layer in the stratosphere lying between roughly 15 and 35 km above the Earth’s surface, containing relatively high concentrations of ozone molecules (O3).

Montreal Protocol

  • It was signed in 1987. It  is signed by 197 countries – the first treaty in the history of the United Nations to achieve universal ratification 
  • Aim: To protect the Ozone layer by reducing the production of substances that are supposed to be responsible for the Ozone layer depletion.
  • It phases down the consumption and production of the different ozone depleting substances in a step-wise manner, with different timetables for developed and developing countries 
  • Kigali Agreement: Signed in 2016, it is legally binding. It seeks to phase out the production of hydrofluorocarbons (HFCs) that are potent greenhouse gases by the late 2040s.