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

Abstract 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…

• NN
  National Natural Science Foundation of China

  Awards: 71673162, 72140003
• MO
  Ministry of Science and Technology of the People's Republic of China

  Award: No.2022YFE0209200
• TU
  Tsinghua University