DOI: 10.1016/j.rser.2019.109651
论文题名: Reaching net-zero carbon emissions in construction supply chains – Analysis of a Swedish road construction project
作者: Karlsson I. ; Rootzén J. ; Johnsson F.
刊名: Renewable and Sustainable Energy Reviews
ISSN: 13640321
出版年: 2020
卷: 120 语种: 英语
英文关键词: Carbon abatement
; Climate change impact
; Decarbonization
; Embodied carbon mitigation
; Emissions reduction
; GHG emissions
; Low carbon technology
; Road construction
; Scenario analysis
; Supply chain
; Sustainability transition
; Sustainable construction
; Transport infrastructure
; Value chain
Scopus关键词: Binders
; Biofuels
; Carbon dioxide
; Cement industry
; Climate change
; Concrete aggregates
; Construction industry
; Decarbonization
; Electric utilities
; Emission control
; Greenhouse gases
; Materials handling
; Road construction
; Roads and streets
; Supply chains
; Sustainable development
; Carbon abatement
; Climate change impact
; Embodied carbons
; Emissions reduction
; GHG emission
; Low-carbon technologies
; Scenario analysis
; Sustainability transition
; Sustainable construction
; Transport infrastructure
; Value chains
; Construction equipment
英文摘要: Recent estimates suggest that the construction sector accounts for approximately one quarter of global CO2 emissions. This paper assesses the potential for reducing the climate impact of road construction. The study is structured as a participatory integrated assessment with involvement from key stakeholders in the supply chain, supported by energy and material flow mapping, an extensive literature review and a scenario analysis. The results indicate that it is technically possible to halve road construction CO2 emissions with today's best available technologies and practices, to abate more than three quarters of the emissions by 2030 and achieve close to net zero emissions by 2045. Realising the current potential would rely on sufficient availability of sustainably produced second-generation biofuels, indicating a need to speed up the implementation of alternative abatement measures, including optimization of material use and mass handling requirements, increased recycling of steel, asphalt and aggregates and enhanced use of alternative binders in concrete. Policy measures and procurement strategies should be aligned to support these measures with a clear supply chain focus. For deep decarbonization several key opportunities and obstacles for realisation of breakthrough technologies for basic industry are highlighted – including electrification and carbon capture for steel and cement, and hybridisation and electrification for heavy transport and construction equipment. There is a clear need to prepare for deeper abatement and associated transformative shifts already now and to carefully consider the pathway of getting there while avoiding pitfalls along the way, such as overreliance on biofuels or cost optimizations which cannot be scaled up to the levels required. © 2019 The Authors Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159033
Appears in Collections: 气候变化与战略
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作者单位: Department of Space, Earth and Environment, Chalmers University of Technology, Gothenburg, 412 96, Sweden; Department of Economics, Gothenburg University, Box 640, Gothenburg, 40530, Sweden
Recommended Citation:
Karlsson I.,Rootzén J.,Johnsson F.. Reaching net-zero carbon emissions in construction supply chains – Analysis of a Swedish road construction project[J]. Renewable and Sustainable Energy Reviews,2020-01-01,120