Fig. 2: Economics of negative emissions from biochar.
From: Exploring negative emission potential of biochar to achieve carbon neutrality goal in China
a The cost curve ($ t−1CO2) of the negative emissions of biochar derived from various feedstocks. Costs consist of the cost of feedstock purchasing, feedstock storage, investment, operation and maintenance, transport of biomass and biochar, and biochar application. b The net cost curve ($ t−1CO2) of the negative emissions of biochar derived from various feedstocks. Net cost refers to the difference between costs and incomes. Incomes consist of increased yield income and syngas income. c Components of costs and incomes for various types of biochar. Source data are provided as a Source data file.
