Cloud computing has become an essential infrastructure for digital transformation across various sectors. Its ability to provide flexible, scalable, and on-demand computing resources offers organizations opportunities to improve operational efficiency. However, the rapid growth of cloud services has also increased concerns regarding energy consumption and environmental sustainability. This study aims to analyze energy-consumption trade-offs in cloud computing adoption from the perspective of Green Information Technology (Green IT). The research employed a qualitative literature review by examining studies related to green cloud computing, sustainable data centers, energy efficiency, digital systems, and computing-resource management. The analysis focuses on infrastructure consolidation, virtualization, data-center energy consumption, computing workloads, and the environmental consequences of digital transformation. The findings indicate that cloud computing can improve resource utilization through infrastructure consolidation and dynamic resource allocation. Nevertheless, efficiency gains at the organizational level do not necessarily produce proportional reductions in total energy consumption because computing demand may increase as digital services become more accessible. The environmental benefits of cloud adoption therefore depend on workload management, infrastructure efficiency, data-center operations, and organizational technology policies. This study concludes that cloud computing should not automatically be categorized as environmentally sustainable; instead, its contribution to Green IT depends on comprehensive energy management throughout the digital infrastructure lifecycle.