پرویز حاجیانی

Background:Inefficient performance of economic system destroys quality and therefore disrupts the natural performance of environment. The first role of the environment is to supply energy sources and materials to the production sector of the economic system to produce goods and services in the economy. On the other hand, the production sector takes its input from the environment as infinite energy sources (energy and materials). In recent decades there has been more attention to the environment to prevent its destruction due to the industrialized growth and development in societies. Aim:This study aims at examining the relationship between the quality index of the environment (Carbon dioxide) and energy consumption, financial development, FDI and per capita income variables. The study of these variables plays a significant role in the stable development and ecosystem consideration in the decision-making process. Methodology:In this study the effect of energy consumption, financial development, FDI and per capita income variables on the quality of environment (Carbon dioxide emission) in the chosen Islamic countries which possess oil structure (Iran, Saudi Arabia, Emirate, Aljazeera, Indonesia, Bahrein and Nigeria) and Islamic countries without oil (Turkey, Malaysia, Pakistan, Bangladesh, Tunes, Egypt and Meraki) is examined. A Panel data model and estimation with the weighted least squares, the dynamic least squares and FMOLS in 1980-2014 test are used as instruments. Results:According to the findings of the present study, per capita energy consumption, per capita income and financial development in the Islamic countries which possess or not possess oil and in general all the chosen countries increase the per capita of CO2 emission and also FDI variable in Islamic countries increase the per capita of CO2 emission. But in the Islamic countries without oil and all the chosen Islamic countries this emission is decrease. Conclusions: According to the findings of the stu