All-night talks in Kigali, Rwanda have produced a deal to limit the use of H-F-Cs, — hydrofluorocarbons.

The agreement was reached by about 200 countries, including Canada, and is described by one climate expert as equal to halting the entire world’s fossil-fuel carbon dioxide emissions for over two years.

H-F-Cs are considered to be the world’s fastest growing climate pollutant.

They’re used in refrigerators and air conditioners.