With features like low cost, quick speed, on-demand, and pay-per-use, cloud computing has evolved into an excellent option for addressing the issues of high-capacity data processing and storage. Despite tremendous growth in the age of cloud computing and related services, the adoption of environmental clouds is still in the early stages due to a lack of fieldwork and several obstacles. To reduce the need for physical hardware components, architecture, and harmful greenhouse gas emissions, green cloud computing is used in cloud environments. Research in green computing focuses on creating effective clouds with eco-friendly features like energy monitoring, virtualization, high efficiency computing, balancing the burden, green data centres, as well as extensibility and recycling, among others. Cloud computing is a widely used, economical infrastructure. Due to the increasing need for data centres, energy consumption has significantly increased. As the guardians of nature, we humans must use energy wisely. Therefore, green computing is launched in the IT industry, which aids in reducing excessive energy usage and enables users to take use of cloud storage benefits with little to no environmental impact. Green cloud helps businesses save money on operating expenses in addition to electricity. This paper discusses green computing, including its current state, upcoming difficulties, and various application domains. The goal of this article is to conduct a thorough, systematic mapping analysis of the GCC's energy-efficient and environmentally friendly practises.

Green computing, Energy efficient, Eco-friendly, Cloud computing, Global environment.