Pepsi tests environment-friendly CO2 vending machines


Is the bubble bursting in terms of negative press for carbon dioxide (CO2)? With the PepsiCo’s use of CO2 for its newest vending machines, the gas appears to be in favour as a more environmentally-friendly option.

Pepsi’s new vending machines use CO2 to lower their impact on the environment, thought to use 15% less energy and emitting 12% fewer greenhouse gas emissions than typical vending machines.

The new machines, which use CO2 as a refrigerant instead of hydrofluorocarbons (HFCs), are being rolled-out in a pilot programme which includes 30 machines in the Washington, D.C., area in the US.

HFCs were first used as refrigerants to replace chemicals that depleted the ozone layer, but are also thought to be thousands of times more potent than CO2 in terms of global warming potential – causing some groups and companies, mostly in Europe and Asia, to switch to CO2 or hydrocarbons.

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