Now, we must turn ambition into action, and strengthen climate protection by harnessing the power of the Montreal Protocol to make progress in slowing the near-term warming caused by hydrofluorocarbons (HFCs), the fastest growing of the greenhouse gases.
Phasing down HFCs would provide considerable benefits. It would avoid up to half a degree of global warming by the end of this century, providing a major boost for the Paris Agreement, and it could also significantly improve the energy efficiency of some alternative refrigerants and technologies.
A global problem requires a global solution. I am confident that any obstacles can be overcome, having already seen nations use the Montreal Protocol to avert up to two million cases of skin cancer a year and save many more people from the suffering caused by cataracts.
By using the Montreal Protocol regime to phase down HFCs, we can complement other efforts to reduce carbon dioxide and other greenhouse gas emissions under the UNFCCC process. On this International Day for the Preservation of the Ozone Layer, let us remember how much has already been accomplished, and commit to do more to protect our atmosphere. By working together, we can build a safer, healthier, more prosperous and resilient world for all people while protecting our planet, our only home.