It is the Next Generation Mobile Networks Alliance’s (NGMN) raison d’être to encourage the development of sustainable, open, disaggregated, and virtualized networks. The latest report in the Green Future Networks sequence addresses energy efficiency in virtualized networks and how to measure it. Future networks, at the heart of the NGMN, will enable features beyond high speeds and reliable coverage. They will support numerous systems including public safety, automotive, drones, factories of the future, and the IoT. Radio access networks will be the center of these varied systems, and their performance, capacity, and energy efficiency will be paramount. In addition, the drive for companies to report their Scope 3 emissions (those indirect ‘value chain’ emissions created by their suppliers and customers)…