Developed countries have committed to providing $540 million (£400m) to help phase out a super greenhouse gas.
The funds will be used for activities aimed at getting rid of climate-warming hydrofluorocarbons (HFCs) in developing countries.
They will be provided between 2018 and 2020 through the Multilateral Fund for the Implementation of the Montreal Protocol.
The commitment was made by the Montreal Protocol parties during a meeting last week.
They also agreed on the need for increased support for research and systematic observations of the ozone layer.
Catherine McKenna, Canada’s Minister of Environment and Climate Change said: “The Montreal Protocol is an example of how we can come together, that we can do what naysayers think is impossible, that we can heal our planet.”
The UK recently became one of the first countries to ratify the landmark agreement to limit the emissions of a super greenhouse gas.