Fig. A.3
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Comparisons of UVC surface flux for all hosts at 100%, 10% and 0.1% PAL O2, as well as high and low CH4 and N2O variations from this study as well as Kozakis et al. (2025). The dashed horizontal lines indicate the amount of O3 for models with modern levels of both CH4 and N2O. Overall variations in N2O have a stronger impact on UVC surface flux, with larger changes when varying CH4 present primarily at 100% PAL O2.
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