It is now globally accepted that human activity has caused rapid climate change, and the built environment is one of the biggest contributors to carbon emissions worldwide. There are primarily two ways in which the built environment generates carbon emissions: from energy used during operation (operational carbon) and from the materials used for building and maintenance (embodied carbon). While the industry is increasingly interrogating operational carbon, embodied carbon has historically been less understood. In 2012, Hawkins\Brown and the University College London Institute for Environmental Design and Engineering agreed to co-fund a doctoral project seeking to improve the visualisation of embodied carbon and its impact on the whole life carbon (WLC) of a project. One output of this research was the Hawkins Brown Emissions Reduction Tool (H\B:ERT), a BIM-based tool for rapid reporting and visualisation of embodied carbon in buildings. This paper outlines the tool's development and initial lessons learned from its use at Hawkins\Brown. H\B:ERT v1 measures embodied carbon. As it is available for free from the Hawkins\Brown website, it has contributed to the rapid rise in discussion and dissemination of information about embodied carbon and the contribution it plays in overall emissions. Version 2, which additionally measures WLC, has been fully integrated into the Hawkins\Brown design and BIM processes allowing consideration of WLC emissions from the earliest design stages alongside more traditional design drivers. The paper concludes by outlining how the tool can develop and what regulatory frameworks are required to ensure WLC decision-making becomes the standard method of approaching building and infrastructure design.

中文翻译：

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Hawkins\Brown 减排工具

现在全球公认，人类活动导致气候迅速变化，而建筑环境是全球碳排放的最大贡献者之一。建筑环境产生碳排放的主要方式有两种：运营期间使用的能源（运营碳）和用于建筑和维护的材料（隐含碳）。虽然该行业越来越多地询问运营碳，但从历史上看，隐含碳一直不太了解。2012 年，Hawkins\Brown 和伦敦大学学院环境设计与工程研究所同意共同资助一个博士项目，旨在改善隐含碳的可视化及其对项目全生命周期碳 (WLC) 的影响。这项研究的一个成果是霍金斯布朗减排工具（H\B：ERT），一种基于 BIM 的工具，用于快速报告和可视化建筑物中的隐含碳。本文概述了该工具的开发以及从其在 Hawkins\Brown 的使用中获得的初步经验教训。H\B:ERT v1 测量隐含碳。由于它可从 Hawkins\Brown 网站免费获得，因此它促进了关于隐含碳及其对整体排放的贡献的讨论和传播信息的快速增长。额外测量 WLC 的版本 2 已完全集成到 Hawkins\Brown 设计和 BIM 流程中，允许考虑早期设计阶段的 WLC 排放以及更传统的设计驱动因素。