Environmental risks

Today, in large projects such as constructing oil, gas and petrochemical refineries, it is inevitable to use modern management methods and project timing. On the other hand, in classic scheduling case, the focus is on balance between time and cost of carrying out projects, which in such a situation, one of possible solutions to shorten time of implementing project is to accelerate activities. This acceleration can affect the quality of conducting projects and environmental impacts, in addition to impose more costs. Hence, in such studies, environmental impacts and quality of activities were also considered as new indicators in case of project time-cost balance. There has been proposed a new mathematical model with four indicators: cost, time, quali-ty and environmental impacts. The provided model is a multi-objective mathematical model of zero-and-one programming type that despite traditional models, in which there is only considered an implementation mode for carrying out activities and a pre-conditional relationship between activities, modes of implementing activities are as multi-form and the dependence relationship between the activities is a generalized pre-requisite. Including the relationships brings the problem closer to the real world. Because of NP-hard of the problem in large dimensions and the necessity of using meta-heuristic Algorithms, we used MOBEE algorithm to solve the model.

Environmental risks and conflicts in the framework of the relations between countries and subsequently their role-playing in interaction and collaboration or conflicts and struggles between political actors especially in the level of states have reproduced serious discussions and disputes on the environment, security, and power which are interpreted as environmental geopolitics or ecopolitics by modern political geography. Geographically, the Persian Gulf is a semi-enclosed sea that has a very low capacity of self-dredging in comparison to that of high seas; hence, it retains the pollutants for longer periods of time. Some of its environmental problems arise from the various activities of the people residing along the northern and southern shores. If the situation is exacerbated by the factors such as oil and its subsequent pollutions, militarism and its subsequent destruction, desalination of seawater, and the construction of artificial islands, one can conclude that regional convergence between the countries neighboring this body of water in the process of bioregionalism would be of an essential necessity. According to the research findings, states acting in the geopolitical region of the Persian Gulf to produce power, security and to sustain them, from one hand, and to protect this shared aquatic ecosystem in the event of sustainable development, from the other hand, should mobilize all collective cooperations and operationalize the bioregionalism in regional and supranational scales.