liquid carbon dioxide Archives – The Green Optimistic green tech news, since 2008 Sun, 15 Nov 2015 20:47:00 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Mercedes-Benz Air Conditioning is Greener and Safer https://www.greenoptimistic.com/mercedes-benz-air-conditioning-R-744-liquid-carbon-dioxide/ https://www.greenoptimistic.com/mercedes-benz-air-conditioning-R-744-liquid-carbon-dioxide/#comments Sun, 15 Nov 2015 20:46:19 +0000 https://www.greenoptimistic.com/?p=57668 In the 1990’s automotive air conditioning systems started switching over from CFC R-12 dichlorodifluoromethane to HFC R-134a tetrafluoroethane, which has significantly less of an ozone-depletion potential. Still, R-134a has a significant global warming potential (GWP), measuring 1,300 on the scale, which has prompted regulators to move for its discontinuation. New mandates specify that new vehicle […]

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