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Welcome to the August 2013 issue of Engineering Sustainability. There are four papers included in this issue covering topics ranging from carbon dioxide emissions assessment, through risk-based approaches to sustainability, to a life-cycle approach for integrating sustainability into design.

The first paper (Itoya et al., 2013) is concerned with evaluating the carbon dioxide equivalent emissions associated with highway maintenance. With the aim of supporting decision making about maintenance, the authors consider data from core highway maintenance processes conducted at 12 locations (four urban, four semi-urban and four rural). Their results, which are presented in detailed tables,...