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UN Climate Body Accepts GWP of R1234yfUN Climate Body Accepts GWP of R1234yf Refrigerant is Lower than CO2
15 May 2014

The UN’s Intergovernmental Panel on Climate Change (IPCC) has confirmed that the automotive HFO refrigerant R1234yf has a GWP of less than 1.0, making it lower than CO2. IPCC has accepted the findings of an independent, peer-reviewed paper, published last year and reported by RAC. The paper, in volume 51 of Reviews of Geophysics, was the first to calculate the GWPs of all fluorocarbon-based refrigerants using all available atmospheric data, taking into account local atmospheric patterns. The study found R1234yf to have a GWP of less than 1. CO2 is considered the baseline with a GWP equal to 1. Earlier studies had calculated the GWP for R1234yf at 4. Nearly half a million cars are now reported to be on the road using R1234yf, and by the end of 2014 the number of such vehicles is expected to exceed 2 million. (Source: The HVAC&R Industry, February 27, 2014)

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