Impact of economic policy uncertainty on CO2 emissions: evidence from Middle East countries

Global warming and climate change due to the emission of greenhouse gases, including carbon dioxide, have seriously threatened global security. Several studies have tried to identify the economic and non-economic factors affecting the emission of carbon dioxide in order to prevent the destruction of the environment; However, the impact of economic policy uncertainty on carbon dioxide emissions has been less studied. for this purpose, in this study, the impact of economic policy uncertainty on carbon dioxide emissions in the Middle East region was investigated using the explanatory auto-regression approach for panel data (Panel ARDL) and STRIPAT model over the time period 2000–2016 has been paid. The results show that in the long term, the effect of GDP per capita and its square on the emission of carbon dioxide gas has been positive and negative and significant, respectively, and also the variables of population size, energy consumption and economic policy uncertainty have a positive and significant effect on the emission of carbon dioxide gas in a way In the long term, with a one percent increase in population size, energy consumption, and economic policy uncertainty, the amount of carbon dioxide gas emissions will increase by 0.17, 0.37, and 0.01 percent, respectively.