Mum’s the Word: We Found a Greener Gas

published Nov 21, 2008 - 2 pages

Hydrofluorocarbons, better known as HFCs, have been the refrigerants of choice since their predecessor, chlorofluorocarbons, were proved to hurt the ozone layer. But refrigeration equipment can leak, and HFCs are a powerful greenhouse gas. So Coca-Cola, McDonald’s and other companies are switching to another gas to keep their vending machines, trucks and in-store freezers and soda machines cold. That gas is carbon dioxide.

Hydrofluorocarbons, better known as HFCs, have been the refrigerants of choice since their predecessor, chlorofluorocarbons, were proved to hurt the ozone layer. But refrigeration equipment can leak, and HFCs are a powerful greenhouse gas. So Coca-Cola, McDonald’s and other companies are switching to another gas to keep their vending machines, trucks and in-store freezers and soda machines cold. That gas is carbon dioxide.


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