Which potent greenhouse gas class is the Kigali Amendment to the Montreal Protocol designed to phase down?

💡 Explanation:

The Kigali Amendment to the Montreal Protocol, adopted in 2016, is designed to phase down the production and consumption of Hydrofluorocarbons (HFCs). HFCs are powerful greenhouse gases that were introduced as replacements for ozone-depleting substances (ODS) like CFCs and HCFCs, which were the original focus of the Protocol. The Amendment is expected to prevent up to 0.5 degrees Celsius of global temperature rise by 2100.