The International Journal of Green Computing (IJGC) provides managers, academicians, scientists, and researchers in various government, public, and private sectors coverage of topical issues like sustainable strategy and innovation, advanced technology related to the 4th Industry Revolution, green digitalization, sustainable asset management (ILS, operation and maintenance, reliability, life cycle etc.), energy and defense efficient systems, green and sustainable transformation, as well as other topics like product usability, reverse and closed loop supply chain, environmental issues (carbon footprints, global warming, recycling and reuse systems, applied ergonomics, climate change), and all those topics related to logic, philosophy and history of science and technology from the green/sustainable point of view. This journal offers research contributions, constructive debates, and investigations on new legislations on disruptive technologies, green (sustainable) IT and processes, Industry 4.0, healthcare informatics and applications in terms of environmental, defense and social issues for both manufacturing and service industry.