How has the Montreal Protocol evolved over the years?

How has the Montreal Protocol evolved over the years?

The Montreal Protocol, established in 1987, has evolved significantly to address the depletion of the ozone layer. Initially focused on phasing out chlorofluorocarbons (CFCs), it has been amended multiple times to include more substances and strengthen commitments.

What are some key amendments to the protocol?

Key amendments include the London Amendment in 1990, which added more substances to the list, and the Kigali Amendment in 2016, which aimed to phase down hydrofluorocarbons (HFCs), potent greenhouse gases.

How effective has the protocol been in protecting the ozone layer?

The Montreal Protocol has been highly effective; studies show that the ozone layer is on track to recover by the middle of the 21st century due to the global commitment to phase out harmful substances.

What challenges does the protocol face today?

Today, challenges include ensuring compliance from all countries, addressing illegal trade of banned substances, and adapting to new scientific findings about ozone-depleting substances.