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Several approaches have been taken to provide first estimates of the large-scale potential of biochar sequestration to reduce atmospheric CO2 (Lehmann et al, 2006; Lehmann, 2007b; Laird, 2008), which will need to be vetted against economic (see Chapters 19 and 20) and ecological constraints and extended to include a full emission balance (see Chapter 18). Such emission balances require a comparison to a baseline scenario, showing what emissions have been reduced by changing to a system that utilizes biochar sequestration.
In fact, biochar research requires working under conditions of economically feasible enterprises in order to investigate the processes at the scale at which they are to be implemented. Much has already been achieved, and the basic information on which biochar for environmental management rests is available. This book documents that information and serves as the starting point for scaling up biochar management to become a global strategy. 10 BIOCHAR FOR ENVIRONMENTAL MANAGEMENT References Ackerman, F.
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