Sainsbury's first to test climate friendly refrigerated trailer

The supermarket could stop leakage of global warming refrigerants by switching to alternative

Sainsbury's new refrigerated lorry will cool using Co2. Credit: Sainsbury'sSainsbury's could reduce its greenhouse gas emissions by 70,000 tonnes of CO2 equivalent per year if tests of a naturally refrigerated lorry trailer transporting chilled and frozen goods are successful.

The new trailer uses carbon dioxide as a refrigerant rather than hydrofluorocarbons (HFCs) which can cause global warming if they leak into the atmosphere from refrigeration systems. R404a, a commonly used HFC, has a global warming potential almost 4,000 times greater than CO2.

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