f30508040

Proportion of Materials
Used in Building Elements

Building Elements by percentage
■Superstructure / Substructure15
■Exterior Envelope25
■Building Services40
■Interior Systems20

651025

Steel Use in Buildings

Application by percentage
■Superstructure65
■Substructure10
■Non-structural25

2519442=

Top 5 Sources of
Global C02 by Industry

Industries by percentage
■Cement24.9
■Steel1.85
■Plastic0.35
■Paper0.42
■Aluminium0.24
9.85 gigatonnes