It is being reported that communications technologies are responsible for about 2-4% of all of carbon footprint generated by human activity. This highlights the need to focus on managing these numbers, and Green communications is doing just that. The trend is tackling first mobile networks because of their high energy use. Basestations and switching centers could count for between 60% and 85% of the energy used by an entire communication system. Environmentally friendly batteries, renewable energy sources, and intelligent management of the power systems are some of the proposed solutions. Besides this mobile network focus, there is a 2015 and beyond trend to manage total energy usage, compute-to-consumption ratios and performance KPIs for best in class green operations
