Fig. 6. (a) IPCC GHG emission reduction pathways (acc. [2]) in relation to the temporal distribution of GHG emissions (embodied and operational) across the life cycle of (b) ‘New Standard’ buildings and (c) ‘New Advanced’ buildings. Projections for future reduction of emission intensity (hatched areas) are based on a yearly improvement of 2% (acc. IEA [4]).