Ever-evolving Montreal Protocol a model for environmental treaties
by Jane Palmer on 12 May 2021
Since the Montreal Protocol was signed in 1987, countries have been phasing out most ozone-damaging chemicals, helping protect the Earth’s protective shield. In this exclusive Mongabay interview, Megumi Seki, Acting Executive Secretary of the UN Environment Programme’s Ozone Secretariat, reviews the history and future of the landmark treaty.
The Montreal Protocol phase-down has also helped prevent further climate warming. But the HFCs replacement gases employed by industry as refrigerants and for other uses while not harmful to the ozone layer, have been found to be powerful greenhouse gases that contribute to climate change.
The HFC challenge: Can the Montreal Protocol continue its winning streak?
by Jane Palmer on 5 May 2021
Since the Montreal Protocol was signed in 1987, countries have phased out most of the ozone-damaging gases, but their replacements, the HFCs, are powerful greenhouse gases that contribute to climate change.
In 2016, national delegates agreed on the Kigali Amendment to the Montreal Protocol, which calls for cutting the production and use of HFCs by 80–85% by the late 2040s. The amendment entered into force at the start of 2019, with the goal of avoiding additional warming by up to 0.4°C (0.72 °F) by the end of the century.
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