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Green supermarkets in South Africa

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Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH, Michael Wetzel
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By switching to natural freezer coolants, supermarkets in South Africa are saving costs and energy. Supermarkets need refrigerators and freezers, and these rely on chemical coolants that damage the ozone layer and environment. But a South African supermarket chain is switching to less damaging natural options, such as carbon dioxide, saving energy and costs.