<p>At the national level, strict adherence to environmental standards is sometimes perceived as a hindrance to economic development and industrial growth. Simultaneously, investing in environmentally focused projects can be costly, leading governments to hesitate. Hence, the primary objective of this study is to delve into the impact and role of governance in promoting green economic growth, focusing on a selection of developing (E-7) and developed (G-7) nations. Assessing the role of governance involves categorizing relevant variables into three groups: Voice and Political, Effectiveness and Regulatory Quality, Rule and Control of Corruption, and the Economic Policy Uncertainty Index and additionally, incorporating other explanatory variables such as employment rates, research and development expenditure as a percentage of Gross Domestic Product, trade openness, and gross fixed capital formation into a quantile panel regression model covering the years 2000 to 2022. The estimation results of the equations reveal that in the group of developing countries (E-7), an initial improvement in the governance index and its components leads to a reduction in green economic growth. However, positive advancements and improvements in green growth are observed in later decades. Economic uncertainty in this group of countries exhibits significant fluctuations, resulting in positive and negative effects on green growth. In contrast, in developed countries, the effects of governance and its components on green growth remain relatively stable and less susceptible to substantial changes. A similar stability is noted regarding economic uncertainty.</p>