Climate-Friendlier Air Conditioning Chemicals Hard to Find, Study Shows
"When nearly 200 countries agreed last October to dramatically reduce their reliance on climate change-polluting chemicals called hydrofluorocarbons (HFCs) in air conditioning and refrigeration, the hunt for alternatives was already underway. Now, a new study in the journal Nature Communications that comprehensively explored pure liquid options found only 27 candidates, and problems with all of them."