Reports that the leaking of a certain type of air-conditioning fluid used in electric vehicles may help cause global warming may be a bit of hot air. The Union of Concerned Scientists (UCS) is addressing stories saying that HFC-134a, also known as R-134a, may nullify the benefits of driving electric because of its potential effect on the ozone. The UCS debunks those stories.
The case of Dupont and Honeywell's refrigerant R-1234yf is doing the exact opposite of keeping things cool. The two chemical companies have spent years and hundreds of millions of dollars developing R-1234yf to replace R-134a, the new refrigerant shown to be 99.7-percent kinder to the environment than the one it is meant to succeed. Part of that development has been years of testing by governments, outside safety agencies and automakers to approve the chemical for use in cars. It passed the prot