INTRODUCTION
Logistics is vital to the success of supply chains and inevitably linked with the overall organizational performance. The activities may involve freight transport, materials handling, storage and inventory management. Logistics has the potential of bringing tremendous impact on local as well as global trade by aiming to supply the right items at the right place and right time. In the past two decades, there has been a growing concern for environmental and social impacts of logistics besides economic aspects. In this regard, the term ‘green logistics’ and ‘sustainable logistics’ has been used by organizations and academic researchers. According to Chang and Qin (2009), “The green logistics refers to plan, control, management and implementation of the logistics system through the advanced logistics technology and environmental management, aiming to reduce the pollutant emission.” Zhao et al. (2009) further explained that “the meaning of green logistics is to improve resource utilization, reduce resource consumption and waste, and minimize environmental pollution when implementing logistics activities, through rational planning, optimize resource allocation and use environmental technology”. Mckinnon et al. (2012) defined 'green logistics' as the study of the environmental effects of all the activities involved in logistics in both forward and reverse directions. Sbihi and Eglese (2010) suggested that “green logistics is concerned with producing and distributing goods in a sustainable way, taking account of environmental and social factors.”
