بررسي رابطه عليت بين توليد ناخالص داخلي و حجم گازهاي گلخانه اي در ايران (مطالعه موردي گاز دي اكسيدكربن)

Investigation of causality between GNP and greenhouse gases (Case study: dioxide carbon in Iran)

Economic aspects of greenhouse gases diffusion and itʹs impacts on environment play important role in economies of different countries. The objectives of the study are to investigate the relationship and causality between GDP and dioxide of carbon gas and to examine the environmental Kuznef s curve in Iran. Standard Granger Causality and Hsiaoʹs Granger Causality tests were employed using OLS technique to estimate a quadratic function. The results showed that there is a one-side relationship from the volume of dioxide of carbon gas to GDP. The results also indicated that since the growth rate of the volume of dioxide of carbon is greater than growth rate of GDP, the shape of the environmental Kuznefs curve does not have the expected form shown in the literature. Therefore,the economic growth of Iran is not in a situation in which it can decrease the environmental polluters.