Methodology for life cycle based assessments of the CO2 reduction potential of ICT services

The presented LCA-based method can be used when assessing the potential CO 2 e emission reduction from introducing an ICT-based service. The method was used to analyze the CO 2 e emissions from the communication networks in Sweden as well as on the effects of introducing smart work solutions at TeliaSonera. For TeliaSonera the CO 2 e reductions resulting from smart work sum up to about 40% per employee, or over 2.8 ton CO 2 e per employee and year. The total reduction potential due to smart work in the world was estimated to be 2 % - 4% of global CO 2 e emissions, if reductions of 20% - 40% can be achieved per employee in a 10 - 20 year timeframe.