Vending machines run day and night and their electricity use and refrigerants can produce significant amounts of greenhouse gases. Pepsi is working on a partial solution.ClimateBiz.com reports:
"PepsiCo's newest vending machines are more energy efficient than previous models and use carbon dioxide (yes, carbon dioxide) to lower their impact on the environment. The company's new vending machine pilot program includes 30 machines in the Washington, D.C., area. The machines are touted as using 15 percent less energy and putting out 12 percent fewer greenhouse gas emissions than typical vending machines. They also use carbon dioxide (CO2) as a refrigerant instead of hydrofluorocarbons (HFCs). HFCs were first used as refrigerants to replace chemicals that depleted the ozone layer, but they also are thousands of times more potent than CO2 in terms of global warming, leading to some groups and companies, mostly in Europe and Asia, switching to carbon dioxide or hydrocarbons." See full article.
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