Acknowledgement This Technical Report was researched and written by Silvia Guzmán Araña (Spain) and Mythili Menon (University of Geneva), as a contribution to ITU‐T Focus Group on Smart Sustainable Cities (FG‐SSC). Special thanks to Angelica Ospina (University of Manchester), Juan Manuel Sabio Morchio (University of KwaZulu‐Natal, South Africa), Mike Wood (Telstra), Paolo Gemma (Huawei), Sang Ziqin (Fiber Home Technologies), Guilherme Canela (UNESCO) for their helpful review and contribution. Additional information and materials relating to this report can be found at: www.itu.int/itu‐t/climatechange. If you would like to provide any additional information, please contact Cristina Bueti at tsbsg5@itu.int.