List of Articles CO2 Emission Open Access Article Abstract Page Full-Text 1 - Economical and Environmental Costs Analysing of Replacing Gas and Electric Water Heaters with the Solar Water Heaters Hossein Yousefi Younes Noorollahi Somayeh Toghyani Open Access Article Abstract Page Full-Text 2 - Investigation of Per capita CO2 Dynamics in OPEC Countries (β and σ Convergence Approach) Davoud Hamidi Razi Majid Feshari 10.22034/jest.2017.10705 Open Access Article Abstract Page Full-Text 3 - Environmental Assessment of the Effect of CO2 Emissions on Economic Development in Iran ali sardar shahraki