The contribution of the German building sector to achieve the 1.5 °C target

IF 2.8 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Carbon Management Pub Date : 2022-01-02 DOI:10.1080/17583004.2022.2133015
Tobias Kropp, K. Lennerts, M. Fisch, Christian Kley, Thomas Wilken, S. Marx, J. Zak
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Abstract

Abstract The melting greenhouse gas emissions budget of the German building sector for the 1.5 °C target requires fast counteraction. In this paper, an analysis of the applicable legal and regulatory framework, the funding situation as well as national and international strategies on a transformation towards climate neutrality elucidates that the suggested approaches do not take a holistic view into account. They neglect, that embodied emissions from construction and emissions from operations phases of buildings must be oriented on the remaining budget, as well as material and human resources associated with the required actions. Therefore a framework to decarbonise the German building sector with eleven recommendations for action, which addresses these findings, is developed with a panel of experts. The results clarify, that the focus must be on adapting the existing building stock since renovation processes release significantly fewer emissions than the construction of new buildings. Stricter legal requirements for building envelopes have no significant effect on the reduction of emissions. Instead, fast-acting measures, such as the usage of district heating, photovoltaics, heat pumps, the optimisation of building operation and digitalisation, must be implemented in a prioritised manner to save resources and maintain the emissions budget longer. To be able to align effective measures it is necessary to engage all Stakeholders and to establish reliable political guidance down to the building level. HIGHLIGHTS A decarbonisation framework for German building sector is developed. An emissions budget is required as a benchmark for measures in new buildings and stock. Focus on fast-acting measures in existing buildings to maintain the budget and resources. Establish a buildings database to evaluate the state, plan resources and monitor effects. The energy sector has to decarbonise simultaneously, due to increasing interconnection.
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德国建筑部门对实现1.5 °C目标
德国建筑行业的温室气体排放预算为1.5°C的目标需要快速反击。在本文中,对适用的法律和监管框架、资金状况以及向气候中和转型的国家和国际战略的分析表明,建议的方法没有考虑到整体的观点。它们忽略了建筑和建筑物运营阶段的具体排放必须以剩余预算以及与所需行动有关的物质和人力资源为导向。因此,一个专家小组制定了一个框架,以使德国建筑部门脱碳,并提出了11项行动建议,以解决这些发现。研究结果表明,重点必须放在改造现有建筑上,因为改造过程比新建建筑释放的排放量要少得多。更严格的建筑围护结构法律要求对减少排放没有显著影响。相反,必须以优先的方式实施速效措施,如区域供热、光伏、热泵、建筑运营优化和数字化,以节省资源并延长排放预算。为了能够协调有效的措施,有必要让所有利益攸关方参与进来,并在建设层面建立可靠的政治指导。重点介绍了德国建筑行业的脱碳框架。排放预算需要作为新建筑和库存措施的基准。重点在现有楼宇采取快速措施,以维持预算和资源。建立建筑数据库,评估现状,规划资源,监测效果。由于日益增长的互联互通,能源部门必须同时去碳化。
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来源期刊
Carbon Management
Carbon Management ENVIRONMENTAL SCIENCES-
CiteScore
5.80
自引率
3.20%
发文量
35
期刊介绍: Carbon Management is a scholarly peer-reviewed forum for insights from the diverse array of disciplines that enhance our understanding of carbon dioxide and other GHG interactions – from biology, ecology, chemistry and engineering to law, policy, economics and sociology. The core aim of Carbon Management is it to examine the options and mechanisms for mitigating the causes and impacts of climate change, which includes mechanisms for reducing emissions and enhancing the removal of GHGs from the atmosphere, as well as metrics used to measure performance of options and mechanisms resulting from international treaties, domestic policies, local regulations, environmental markets, technologies, industrial efforts and consumer choices. One key aim of the journal is to catalyse intellectual debate in an inclusive and scientific manner on the practical work of policy implementation related to the long-term effort of managing our global GHG emissions and impacts. Decisions made in the near future will have profound impacts on the global climate and biosphere. Carbon Management delivers research findings in an accessible format to inform decisions in the fields of research, education, management and environmental policy.
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