This research aims to study the activation role of audit committees in reducing environmental risks in some companies operating in the petroleum sector in Suez Governorate, especially with the increasing interest in the environment and the emergence of governance and the shift of supervisory thinking towards environmental issues and emphasizing the importance of having effective control systems in those companies to manage those risks and reduce their negative effects on the environment and handle all the financial and economic obligations arising from it in the event that they are fulfilled, due the close relationship between the level of governance application mechanisms  inside companies and their ability to reduce the negative effects of those risks, especially with the critical  relationship between environment and development ,due to the accelerating depletion of environmental resources and the high rates of pollution, which requires rethinking about the dimensions of that relationship to achieve balance and not prejudice The environmental system in which these companies operate  where the level of awareness of the environmental risks associated  with operating  activity , the way they handle its affects, affect  their ability to reduce their negative impacts on the environment and the society in which they operate. The study reached several important results, including the existence of a significant impact of corporate governance on both the effectiveness of audit committees and environmental risk management, the existence of a significant impact of the effectiveness of audit committees in reducing environmental risks, and the difficulty of managing environmental risks in companies in the absence of effective control systems. Emphasis on The importance of adhering to environmental laws and standards to improve the level of environmental performance of companies and achieve sustainable development goals.