Addressing energy use in the built environment is just one aspect of the carbon reduction challenge, according to The Footprint Company chief executive Dr Caroline Noller. Addressing the embodied carbon in building materials is also vital.

Dr Noller told The Fifth Estate international data showed that more than 50 per cent of global carbon emissions ended up in a building or infrastructure material of some kind.

This research explores the carbon impact of current Value Engineering (VE) practices in Australia. To accomplish this goal, a complex mixed-use building in Sydney was modelled to determine the capital material costs and initial embodied carbon emissions before and after the VE process. The results support the suggestion of a positive relationship between embodied carbon and capital cost, as outlined in the literature.

Covering roofs and walls of buildings with vegetation is a good way of reducing greenhouse gas emissions. And these green roofs and walls make cities look nicer. Toronto’s central business district adopted a policy of establishing green roofs on around half of all city buildings in 2009. Research shows this could reduce maximum city temperatures by up to 5℃.

Read the full article on The Conversation.