With more than 30,000 supermarkets operating across the U.S., the food retail industry's stamp on the environment is undeniable and its involvement in environmental issues inescapable. One of the more high-profile issues continues to be the need to replace ozone-depleting HCFC, or hydrochlorofluorocarbon, refrigerants used in low- and medium-temperature display cases with more environmentally benign HFC versions (which lack the chlorine). While not new (CFCs have already been retired), this ...
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