Green IT is the latest manifestation of sustainable business practices. The decision surrounding whether or not to implement Green IT strategies, policies, and tools provides compelling challenges for organizations. While practitioners have been highly interested in this topic for a while, recently, there is also a growing interest on this topic among academicians. In this paper, we conduct a comprehensive review of both the practitioner and academic literature surrounding Green IT. By presenting the overlaps and differences between both perspectives, we aim to identify noticeable gaps in the current literature. By presenting research questions, we aid scholars in determining rigorous academic research directions of this phenomenon.