Carbonated Cooling

The shadow cast by global warming takes in a critical part of supermarket operations refrigeration. That's because the refrigerants used by store systems have a propensity for escaping into the atmosphere. Once there, they act as greenhouse gases with a high global warming potential (GWP), the measure of global warming that starts with carbon dioxide's GWP of one. For example, R-22, the common HCFC

The shadow cast by global warming takes in a critical part of supermarket operations — refrigeration.

That's because the refrigerants used by store systems have a propensity for escaping into the atmosphere. Once there, they act as “greenhouse gases” with a high global warming potential (GWP), the measure of global warming that starts with carbon dioxide's GWP of one.

For example, R-22, the common HCFC refrigerant still widely used by supermarkets (but being phased out because

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