This presentation contains lecture material for a 1h30 course on Sustainable Networking. The content is high-level and accessible to a broad technical audience. It does not require a lot of networking background. This record will be updated as I produce new/extended versions of the material. Changelog v1.1: Minor corrections corrected the ambiguity between electricity and energy removed DVFS from the "sleeping" technique (technically, it's a rate-adaptation method) minor formating polish