Abstract
Green lean six sigma (GLSS) is an emerging approach towards environmental sustainability in conjunction with operational achievements. The success of this approach is premised on an understanding of the different components of a GLSS program; being the determinants for its outcomes. The aim of this paper is to investigate the various constructs of GLSS that play an essential role in achieving environmental sustainability. For this purpose, a systematic review of available literature has been conducted to evaluate the drivers, enablers (tools), and outcomes of a GLSS strategy as well as its critical success factors and barriers. Findings reveal that these constructs of GLSS as a holistic approach can facilitate an organization to better accomplish environmental objectives such as waste minimization, emission reduction, and resource conservation as compared to constructs of only one or any two of these strategies. Based on the analysis, an integrated GLSS framework is developed for environmental sustainability in addition to identifying vital research gaps and future directions.
Highlights
In the past few decades, organizations have implemented various improvement strategies globally to increase operational performance and achieve customer satisfaction [1]
There is a lack of Green lean six sigma (GLSS) frameworks available in literature including a number of frameworks that have not been empirically tested from an industrial or real-life perspective [1,6,9,19,81,92]
lean and six sigma (LSS) can achieve environmental performance by reducing process wastes and defects, it lacks in aspects of the life cycle analysis, design for environment and environmental management programs which are core objectives of the green strategy
Summary
In the past few decades, organizations have implemented various improvement strategies globally to increase operational performance and achieve customer satisfaction [1]. Environmental problems are identified as greenhouse gas (GHG) emissions such as carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) [4], generation of volatile organic compounds (VOCs), and water pollution [4,5] These GHG emissions are generated during the manufacturing processes within the organization and in supply chain activities while procuring material through logistics and transportation [6,7]. Along with these challenges, organizations experience a global limitation of resources including energy, water, and raw material [8]. A system is required that enhances the environmental performance of an organization without compromising the operational objectives [8]
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