Top 5 Sources of
Industries by percentage
■Cement24.9
■Steel1.85
■Plastic0.35
■Paper0.42
■Aluminium0.24
9.85 gigatonnes
6474548
Sources of GlobalC02 gigatonnes by Sector
■Buildings8.8
■Industry9.9
■Transport7.3
■Other1.1
27.1 gigatonnes
f30508040
Proportion of MaterialsBuilding Elements by percentage
■Superstructure / Substructure15
■Exterior Envelope25
■Building Services40
■Interior Systems20