Full life cycle in sustainable ICT for reaching energy reduction, energy efficiency and energy proportionality

Energy consumption is one of the main limiting factors for the development and deployment of large scale distributed systems (datacenters, Clouds, networks). A lot of academic and industrial researches propose several hardware and software based approaches in order to reduce energy consumption and to exhibit energy proportional and energy efficient capabilities. But for reaching such improvements a full vision of environmental impact of ICT must be taken into account: from material extraction, transport to design, usage and end of life. This talk will explore some challenges in dealing with ICT life cycle and will illustrate that with several scenario and examples.