What concern arises from the use of HFCs as refrigerants?

The primary concern regarding the use of HFCs (hydrofluorocarbons) as refrigerants is their high global warming potential (GWP). HFCs are synthetic chemicals that, while they do not deplete the ozone layer, can trap heat in the atmosphere significantly more effectively than carbon dioxide. This characteristic contributes to global warming and climate change, making HFCs a focus of environmental regulation and international agreements aimed at reducing greenhouse gas emissions.

As a result, many governments and organizations are working towards phasing out HFCs in favor of alternatives that have a lower GWP. The focus on HFCs aligns with global efforts to mitigate climate impacts, especially since the emissions from HFCs can remain in the atmosphere for a long time, exacerbating warming effects. Understanding the global warming potential of refrigerants is crucial for HVAC professionals and environmental sustainability initiatives.