Treaty ending use of planet-warming HFCs takes effect in 2019

The treaty phasing out the use of Earth-warming hydrofluorocarbons now has an official start date. Sweden has become the 20th country to ratify the Kigali Amendment, invoking a clause that has the measure taking effect on January 1st, 2019. From th...

Kigali Amendment reached to cut use of planet-warming HFCs

Today, more than 170 nations have settled on a plan to cut the use of hydrofluorocarbons (or HFCs), a refrigerant that causes warming in the Earth's atmosphere. Called the Kigali Amendment for the location of negotiations in Rwanda, it's the result o...