  There is a general need of elaborating energy-effective solutions for
managing our increasingly dense interconnected world. The problem should be
tackled in multiple dimensions -technology, society, economics, law,
regulations, and politics- at different temporal and spatial scales. Holistic
approaches will enable technological solutions to be supported by
socio-economic motivations, adequate incentive regulation to foster investment
in green infrastructures coherently integrated with adequate energy
provisioning schemes. In this article, an attempt is made to describe such
multidisciplinary challenges with a coherent set of solutions to be identified
to significantly impact the way our interconnected energy world is designed and
operated.
