Exploring negative emission potential of biochar to achieve carbon neutrality goal in China

Limiting global warming to within 1.5 °C might require large-scale deployment of premature negative emission technologies with potentially adverse effects on the key sustainable development goals. Biochar has been proposed as an established technology for carbon sequestration with co-benefits in ter...

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Bibliographic Details
Published in:Nature communications Vol. 15; no. 1; pp. 1085 - 11
Main Authors: Deng, Xu, Teng, Fei, Chen, Minpeng, Du, Zhangliu, Wang, Bin, Li, Renqiang, Wang, Pan
Format: Journal Article
Language:English
Published: London Nature Publishing Group UK 05.02.2024
Nature Publishing Group
Nature Portfolio
Subjects:
704/844/2175
704/844/682
Carbon
Carbon - analysis
Carbon dioxide
Carbon Dioxide - analysis
Carbon neutrality
Carbon Sequestration
Charcoal
China
Climate change
Crop yield
Economic analysis
Emission analysis
Emissions
Global warming
Goals
Humanities and Social Sciences
multidisciplinary
Science
Science (multidisciplinary)
Soil
Soil quality
Sustainability
Sustainable development
China
United States > US
ISSN:2041-1723, 2041-1723
Online Access:Get full text
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Summary:Limiting global warming to within 1.5 °C might require large-scale deployment of premature negative emission technologies with potentially adverse effects on the key sustainable development goals. Biochar has been proposed as an established technology for carbon sequestration with co-benefits in terms of soil quality and crop yield. However, the considerable uncertainties that exist in the potential, cost, and deployment strategies of biochar systems at national level prevent its deployment in China. Here, we conduct a spatially explicit analysis to investigate the negative emission potential, economics, and priority deployment sites of biochar derived from multiple feedstocks in China. Results show that biochar has negative emission potential of up to 0.92 billion tons of CO 2 per year with an average net cost of US$90 per ton of CO 2 in a sustainable manner, which could satisfy the negative emission demands in most mitigation scenarios compatible with China’s target of carbon neutrality by 2060. Authors analyze the potential of biochar in China, revealing it could sequester up to 0.92 billion tons of CO 2 per year with an average net cost of US$90 per ton of CO 2 in a sustainable manner, supporting carbon neutrality goal by 2060.
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ISSN:2041-1723
2041-1723
DOI:10.1038/s41467-024-45314-y