
Air conditioning units, often using HFC gases, in a building in Shenyang, China
Visual China Group via Getty Images
Emissions of a powerful greenhouse gas released as a by-product in the manufacture of refrigerants are much higher than reported by governments, suggesting that a global deal to eliminate these emissions is failing.
under The Kigali amendment to the Montreal Protocol, signed in 2016More than 160 countries said they would do their best Eliminate HFC-23 emissionsa gas with a heating capacity 14,700 times greater than carbon dioxide. Government figures show that emissions have fallen further…