Montreal Protocol

• Protocol of Vienna Convention: Protection of the Ozone Layer,1985
• To cut down 99% of all ozone-depleting substance (ODS)
• India (1992)

Ozone layer

• Stratosphere, 
• absorbs UV rays
• 16 September 

Kigali Agreement

• 2016 (entered into force in 2019)
• 80% reduction in HFCs consumption by 2047.

Ozone-depleting substance (ODS)

• CFCs
• halons
• methyl bromide
• bromochloromethane

CFCs

• harmful for the Ozone layers
• Use: Refrigerators, AC, Fire extinguishers, foams

HFCs

• do not harm Ozone Layer 
• Causing global warming