Montreal protocol

• Depletion of stratospheric ozone layer on road to recovery


  1983-Sept
• Montreal Protocol


  Reduce CFC, air pollution and increase energy efficiency
• Montreal Protocol


  1. Reduce use of chemicals by doing to stratospheric ozone layer

  2. Cut emission by 80 billion tonnes by 2050

  4. Cut CFCs by 50% over next 100 years
• 198 UN member states part of the protocol
• Treaty succeeded in reducing ozone depleting gases to large extent
• Important measure of success is the change in value of stratospheric chlorine
• Signed by all counties in UN-first agreement of U to be fully ratified-high success
• Parties of protocol phased out 98% of ozone depleting substances, so 2 million saved from skin cancer every year
• • Annual meetings
  • Agreed targets
  • Quick to implement
• Ozone layer is recovering and continues to recover over next 7 decades if everything in place- already fulfilled original objective by recovering ozone layer
• Celebrating 30th anniversary in 2017
• Some replacements for harmful substances have damaging impacts e.g. replacement for CFC called scPFCAS travel long distances in the atmosphere and can cause contamination in lakes and rivers which affects the health of fresh water invertebrates incl insects
• Phasing out use of CFCs-reduce use of damaging chemicals by 80%- reduce ½ degree Celsius by 2100-great contribution to slowing down global warming
• Stresses nearly 100% increased UV radiation levels damaging to human health