1. Introduction
Energy is a key factor in discussions of economic, social and environmental dimensions of sustainable development (Dincer, 1999). A different type of energy is fossil-based energy, which generally includes coal, petroleum, natural gas, etc. Another type is green energy. As is known, fossil energy sources are not renewable. In order to explain and find out the requirement of sustainable energy strategies for green energy supply and progress, the main negative effects of fossil fuels should be first introduced.