Concrete as traditionally used in construction is C02 intensive and comprises mostly non-renewable constituents. In the order of 1 tonne of C02 (a significant ‘greenhouse’ gas) is generated for each tonne of Portland Cement produced. Thankfully, many developed countries including Australia have committed to very immediate and significant climate change reduction targets. This has in turn necessitated advance in the development of alternate materials and construction techniques in support of emission targets. This presentation is relevant to project management professionals as it identifies current and impending alternatives to traditional concrete, includes project examples, and provides specification advice. it is of particular value to those involved in reduced-carbon or net zero carbon government projects.