Accounting of the LCA and consumption/needs based GHG emissions of cities, communities, buildings and companies require systematic, interdisciplinary, transparent and multilayered approaches. The components of a rational framework for GHG accounting include human needs, life cycle, ICT and scoping components. In this chapter, these components are shown in the different frameworks. This chapter describes a framework interaction matrix which embraces full spectrum framework, data specific framework, digital transformation framework and LCA framework. Then the chapter addresses methodology for LCA and consumption/needs-based GHG emission accounting within a combined GHG accounting framework interaction matrix.