Volkswagen, Daimler, Audi, BMW and Porsche have announced plans to develop CO2 technology as a more climate-friendly refrigerant for air conditioning systems. VW says CO2 as a refrigerant — also known as R744 — has lower greenhouse gas effects than conventional refrigerants, with a GWP (Global Warming Potential) value of 1, or 99.3 percent below […]
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