s:725:"TI The legality of biochar use: Regulatory requirements and risk assessment 
AU Hammond, J. 
AU Ibarrola R 
AU Nelissen V 
AU O'Toole A 
AU Ruysschaert G 
AU Schmidt H -P 
AU Shackley S 
AU Van Laer T 
AU Van Scholl L 
AB One of the major motivations for the use of biochar is environmental improve - ment, both to improve soil quality and to reduce atmospheric greenhouse gas (GHG) concentrations. However, if biochar is produced or used inappropriately it could cause more harm to ecosystems, human health and GHG concentrations than benefit them – a situation to be avoided. Regulation and legislation, as well as voluntary standards, aim to ensure that biochar use is not environmentally counterproductive. 
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