This book presents the latest findings and ongoing research in connection with green information systems and green information & communication technology (ICT). It provides valuable insights into a broad range of cross-cutting concerns in ICT and the environmental sciences, and showcases how ICT can be used to effectively address environmental and energy efficiency issues. Offering a selection of extended contributions to the 31st International Conference EnviroInfo 2017, it is essential reading for anyone looking to expand their expertise in the area.