The emergence of the Metaverse poses as an, interconnected virtual ecosystem which has raised the global interest across various disciplines. Metaverse offers unprecedented opportunities for communication, commerce, inputs, environmental variablesand collaboration, its rapid development brings significant concerns regarding sustainability, energy consumption, and environmental impacts causing great influences on the human life. The concept of the Green Metaverse addresses these challenges by integrating ecological concepts and sustainable technologies into Metaverse infrastructure and applications. In this context, fuzzy logic emerges as a powerful computational intelligence tool which is capable of handling the inherent and ample uncertainties and imprecise information associated with environmental systems, user behavior, and energy optimization. The association with different natural phenomena also caters a good amount of information to the users. This chapter provides an appropriate framework for the close understanding of the very new concept of Green Metaverse along with the fuzzy logic system towards the unfurling of the most eco-friendlily virtual world in the near future.