How Financial Depth Interact With Green Innovation and Technological Innovations: Implications for Sustainable Development in G‐20 Economies

ABSTRACT Choosing to go green within the Sustainable Development Goals (SDGs) is a smart move that has been at the forefront of all strategies and is a global concern. As a result, the current study investigates the impact of technical innovation (TI), green innovation (GI), information and communication technology (ICT), financial depth (FD), GDP in relation to CO 2 emissions (COE), and ecological footprint (EF) for the G‐20 economies between 1990 and 2021. The Method of Moments Quantile Regression (MMQR) is utilized for analysis, while the Westerlund test is utilized for cointegration. The conclusion validated mixed findings for the EF and COE models. In the G‐20, GI and its interaction with FD are lowering EF, but for the COE model, FD outweighs the effects of GI and becomes a barrier to lowering COE. Meanwhile, the development of information and communication technology dramatically raises emissions and the ecological footprint across a range of quantiles. On the other hand, GDP considerably increases EF and COE across all quantiles. More specifically, both ICT and GDP significantly increase the EF, with coefficient values of 0.098 and 0.513, respectively. The interactional term of financial depth and technological innovations (FDTI), on the other hand, is causing a decline in EF, with a coefficient value of −0.352. Furthermore, TI significantly reduces COE, with a coefficient value of −0.567. To meet the SDGs, this study suggests enacting eco‐friendly policies, encouraging green investments, and strengthening tax regulations that support nature protection.