<p>This study addresses a critical gap in the literature by shifting the focus from energy consumption to the underexplored role of energy innovation (clean and dirty) in environmental health. We investigate how decomposed energy innovation, proxied by clean and fossil fuel energy patents, influences environmental safety in Saudi Arabia, proxied by CO₂ emissions. The analysis incorporates newly constructed measures of climate governance, financial development (FND), and the interaction between climate governance and both clean and fossil fuel energy patents over the period from 1994 to 2024. Given the combination of normal and non-normal distributions alongside non-stationary issues in the data properties, we utilize simultaneous quantile regression and time-varying quantile causality techniques. Our findings indicate that clean energy innovation has a trivial impact on emissions, whereas fossil fuel energy innovation increases CO₂ emissions and contributes to environmental degradation. Both FND and economic growth positively influence CO₂ emissions, thereby exacerbating environmental decay. Importantly, climate governance significantly reduces CO₂ emissions and improves environmental health. Although the moderating role of climate governance in clean energy innovation remains negligible, its interaction with fossil fuel energy innovation reduces the detrimental effects of fossil fuels, thereby lowering CO₂ emissions and enhancing environmental health. We recommend enhancing clean energy-centric technological innovation through robust climate governance frameworks while leveraging economic growth and financial potentials in a balanced manner to ensure environmental safety in Saudi Arabia.</p>