Global deal reached to limit greenhouse gases

Nearly 200 nations have reached a deal, announced Saturday morning after allnight negotiations, to limit the use of greenhouse gases far more powerful than carbon dioxide in a major effort to fight climate change.

The talks on hydrofluorocarbons, or HFCs, were called the first test of global will since the historic Paris Agreement to cut carbon emissions was reached last year. HFCs are described as the world’s fastest-growing climate pollutant and are used in air conditioners and refrigerators. Experts say cutting them is the fastest way to reduce global warming.

President Barack Obama, in a statement Saturday, called the new deal “an ambitious and far-reaching solution to this looming crisis.” The spokesman for U.N. Secretary-General Ban Ki-moon called it “critically important.”

The agreement, unlike the broader Paris one, is legally binding. It caps and reduces the use of HFCs in a gradual process beginning by 2019.