The air conditioning and refrigeration industries are asking Congress to chill an EPA initiative started under the Biden administration to change refrigerants used in AC units. The EPA move seeks to respond to climate change by changing to refrigerants such as propane, which is highly flammable. To further complicate matters, there's a phase-in period with transitional coolants. We speak with Bob Cochell, owner of Gulf Coast Air Systems, former president of the Florida Refrigeration and Air Conditioning Contractors Association, and longtime advocate for the HVAC industry.