Recent improvements to global parameterisations of oceanic ozone dry deposition and lightning-generated oxides of nitrogen (LNO_x) have consequent impacts on earth's radiative fluxes. Uncertainty in radiative fluxes arising from uncertainty in LNO_x is of significant magnitude in comparison with the present-day IPCC AR6 anthropogenic effective radiative forcing (ERF) due to ozone. Hence, uncertainty in LNO_x needs to be explicitly addressed in relation to the GWP and ERF of anthropogenic methane.