Background: Today, the crisis of environmental pollution has become a global challenge and issue. Examining factors affecting the increase of pollutants can be effective in planning for the control and management of pollutants.
Therefore, in recent years, climate changes and long-term adverse effects for the ecosystem and the global economy, as well as the demand for alternative sources of fossil fuels, have had an upward trend. For this reason, government policies both to limit greenhouse gas (GHG) emissions and to prepare for the effects that have become unavoidable are now the highest priorities in many countries. Considering that the selected OPEC member countries have a lot of fossil resources such as oil, gas, etc., if they are not used improperly and indiscriminately, they can have adverse effects on the quality of the environment of the countries and even by releasing greenhouse gases.
Aim: The purpose of this research is to investigate the effect of renewable energy consumption, information and communication technology and foreign direct investment on CO2 emissions in OPEC member countries during the period of 2000-2021.
Methodology: In this research, the generalized moments method has been used to estimate the impact of renewable energy consumption, information and communication technology, and foreign direct investment on CO2 emissions in OPEC member countries.
Conclusions: According to the research results, the variables of renewable energy consumption, the number of internet users per 100 population have a negative and significant effect on carbon dioxide emissions and the variables of foreign direct investment, real GDP per capita and the number of mobile phone users per 100 have a positive effect and have a significant impact on carbon dioxide emissions. Also, the environmental hypothesis of Kuznets was confirmed for OPEC member countries.