Make it law that: - shops/businesses that are running air-conditioning (whether for heating or cooling) must have doors that remain closed until opened by people entering/exiting.
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- all chilled units in grocery stores must have covering or doors to retain the refrigeration efficiently.
I walk past many buildings where the door is open and the air-conditioned is blasting out, often at the open entrance. Air conditioners and electric fans have been found to consume around 10% of global electricity. They can leak hydrofluorocarbon refrigerants (HFCs), powerful planet-warming gases and a major contributor to global heating, into the atmosphere. The most commonly used – R-410A – is more than 2,000 times more potent than carbon dioxide.
By mandating closed doors for businesses with air-conditioning and protective coverings for refrigerated units, we can conserve electricity and curb harmful greenhouse gas emissions.