Supermarkets are tackling emissions from their freezer aisles

The average U.S. supermarket leaks up to 25 percent of its refrigerant gases into the atmosphere, according to the Environmental Protection Agency. A single supermarket can emit as much as 875 pounds of HFCs a year — that’s the CO2 equivalent of 300 cars, according to Avispa Mahapatra, climate campaign director at the Environmental Investigation Agency.