HFOs have lower GWPs than CO2 - new report

The new HFO alternative refrigerants have been found to have GWPs below that of carbon dioxide, according to a new study. An independent peer-reviewed paper published in the latest issue of Reviews of Geophysics found both R1234yf and R1234ze to have GWPs less than the baseline of 1 for CO2 and substantially lower than previously thought. Until now, R1234yf had a published GWP of 4 and 1234ze 6.