Sustainability, Volume 16, Issue 1
January-1 2024 - 469 articles
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Cover Story: This paper explores building-integrated greenery (BIG) systems, including green roofs and facades, as eco-beneficial solutions. Despite benefits, adoption is slowed by high costs and economic barriers. A key challenge is the lack of standardized metrics to measure BIG's city-level impact, which is crucial for investors and policymakers. The paper addresses this by introducing comprehensive indicators from frameworks like CICES and the NBS impact evaluation handbook. These indicators contribute to establishing a 'sustainability factor' for the cost-benefit analysis of BIG projects using local data. A case study on a 3500 m2 green roof in Lleida, Spain, demonstrates that its benefits in urban horticulture, CO2 capture, and recreational areas significantly outweigh the costs, offering key insights for policy and investment decisions. View this paper