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.

The Living Building Challenge™ is an attempt to dramatically raise the bar from a paradigm of doing less harm to one in which we view our role as a steward and co-creator of a true Living Future. The Challenge defines the most advanced measure of sustainability in the built environment today and acts to rapidly diminish the gap between current limits and the end-game positive solutions we seek.

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.