Shun refrigerants that warm

Hydrofluoro-carbons (HFCs), a class of compounds used in commercial refrigeration and air-conditioning units, are potent greenhouse gases. - Reuters

There are ways to cool foods without frying the planet.

Banning the use of hydrofluorocarbons (HFCs) – super greenhouse gases used in refrigeration – in supermarkets would be one of the cheapest and most effective ways to reduce greenhouse gases.