Keynote: The fog is rising, in sustainable smart cities

With their variety of application verticals, smart cities represent a killer scenario for Cloud-IoT computing, e.g.~fog computing. Such applications require a management capable of satisfying all their requirements through suitable service placements, and of balancing among QoS-assurance, operational costs, deployment security and, last but not least, energy consumption and carbon emissions. This keynote discusses these aspects over a motivating use case and points to some open challenges.