Since coming into effect on 1 January 2019, the number of parties to ratify the Kigali Amendment exceed 100. The Kigali Amendment will avoid around 0.4°C of global heating directly by encouraging the use of climate-safe refrigerants in place of high global warming HFCs.
The Adjustment to the Montreal Protocol agreed in 2018 in Quito at the Thirtieth Meeting of the Parties enters into force on 21 June 2019.
The Kigali Amendment to the Montreal Protocol enters into force on 1 January 2019. The Amendment will reduce the projected production and consumption of hydrofluorocarbons (HFCs) by more than 80 per cent over the next 30 years.
Parties adopt the Kigali Amendment to the Montreal Protocol on 15 October, agreeing to phase down the consumption and production of hydrofluorocarbons (HFCs).
After six years of discussions, parties agree to work under the “Dubai Pathway on Hydrofluorocarbons (HFCs)” towards an amendment to the Montreal Protocol to phase down HFCs.
Developing countries phase out methyl chloroform and reduce by 10 per cent their production and consumption of hydrochlorofluorocarbons (HCFCs).
All four Amendments to the Montreal Protocol achieve universal ratification by 197 Parties.
The scientific assessment of ozone depletion in 2014 confirms that the ozone layer is healing and will return to pre-1980 levels by mid-century, thanks to actions taken by Parties under the Montreal Protocol.
Developed countries eliminate 90 per cent of their HCFC production and consumption.
Developing countries freeze the production and consumption of HCFCs.
A scientific article published in the Journal of Photochemistry and Photobiology notes that through ozone protection efforts, up to 2 million cases of skin cancer may be prevented each year by 2030.
All parties to the Montreal Protocol phase out the consumption and production of chlorofluorocarbons (CFCs), halons, carbon tetrachloride and other fully hydrogenated ozone depleting substances.
A scientific article published in the PNAS journal notes that the Montreal Protocol has averted more than 135 billion tonnes of carbon dioxide equivalent emissions going to the atmosphere, thus significantly contributing to the mitigation of climate change.
The Vienna Convention and the Montreal Protocol become the first multilateral environmental treaties to achieve universal ratification.
Adjustments to the Montreal Protocol agreed in 2007 in Montreal at the Nineteenth Meeting of the Parties enter into force.
The Montreal Protocol is adjusted to accelerate the phase-out of HCFCs by developing countries.
The largest Antarctic ozone hole, averaging 26.6 million square kilometres, is recorded.
Developed countries phase out methyl bromide, followed by developing countries by 2015.
Former United Nations Secretary-General Kofi Annan terms the Montreal Protocol “perhaps the single most successful international environmental agreement to date.”
The Beijing Amendment to the Montreal Protocol agreed in 1999 in Beijing at the Eleventh Meeting of the Parties enter into force.
The Montreal Amendment to the Montreal Protocol agreed in 1997 in Montreal at the Ninth Meeting of the Parties enters into force.
Adjustments to the Montreal Protocol agreed in 1997 in Montreal at the Ninth Meeting of the Parties enter into force.
The first set of control measures under the Montreal Protocol take effect for developing countries.
Developing countries freeze the production and consumption of HCFCs.
Adjustments to the Montreal Protocol agreed in 1995 in Vienna at the Seventh Meeting of the Parties enter into force.
The Nobel Prize for Chemistry is awarded to Sherwood Rowland, Mario Molina and Paul Crutzen for their pioneering work in atmospheric chemistry, particularly concerning the formation and decomposition of ozone.
Developed countries phase out halons used in products such as fire-fighting equipment, followed by developing countries in 2010.
The Copenhagen Amendment to the Montreal Protocol agreed in 1992 in Copenhagen at the Fourth Meeting of the Parties enters into force.
