Thanks both for the pointers (it's easier to google if you know what to search for). https://climate.ec.europa.eu/eu-action/fluorinated-greenhouse-gases/climat

Thanks both for the pointers (it's easier to google if you know what to search for). https://climate.ec.europa.eu/eu-action/fluorinated-greenhouse-gases/climate-friendly-alternatives-hfcs_en https://climate.ec.europa.eu/eu-action/fluorinated-greenhous... is the list of alternatives with corresponding GWP for EU.