Impact of Biogenic Carbon Neutrality Assumption for Achieving a Net-Zero Emission Target;Insights from a Techno-Economic Analysis

Hamed Kouchaki-Penchah; Olivier Barm; Kathleen Vaillancourt

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Impact of Biogenic Carbon Neutrality Assumption for Achieving a Net-Zero Emission Target;Insights from a Techno-Economic Analysis

机译：Impact of Biogenic Carbon Neutrality Assumption for Achieving a Net-Zero Emission Target;Insights from a Techno-Economic Analysis

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Global pathways limiting warming to 2 ℃ or below require deep carbon dioxide removal through a large-scale transformation of the land surface,an increase in forest cover,and the deployment of negative emission technologies(NETs).Government initiatives endorse bioenergy as an alternative,carbon-neutral energy source for fossil fuels.However,this carbon neutral assumption is increasingly being questioned,with several studies indicating that it may result in accounting errors and biased decision-making.To address this growing issue,we use a carbon budget model combined with an energy system model.We show that including forest sequestration in the energy system model alleviates the decarbon-ization effort.We discuss how a forest management strategy with a high sequestration capacity reduces the need for expensive negative emission technologies.This study indicates the necessity of establishing the most promising forest management strategy before investing in bioenergy with carbon capture and storage.Finally,we describe how a carbon neutrality assumption may lead to biased decision-malting because it allows the model to use more biomass without being constrained by biogenic CO2 emissions.The risk of biased decision-making is higher for regions that have lower forest coverage,since available forest sequestration cannot sink biogenic emissions in the short term,and importing bioenergy could worsen the situation.

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来源
《Environmental Science & Technology: ES&T》 |2023年第29期|10615-10628|共14页
作者
Hamed Kouchaki-Penchah; Olivier Barm; Kathleen Vaillancourt;
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作者单位

Department of Construction Engineering,Ecok de Technologie Superieure,Montreal Quebec H3C 1K3,Canada;

GERAD and Department of Decision Sciences,HEC Montreal,Montreal H3T 2A7,Canada;

ESMIA Consultants,Blainville H2S 254,Canada;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种英语
中图分类环境科学、安全科学;
关键词
Negative emissions technologies; terrestrial sequestration; biogenic carbon; energy system decarbonization; TIMES model;

Impact of Biogenic Carbon Neutrality Assumption for Achieving a Net-Zero Emission Target;Insights from a Techno-Economic Analysis

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