Biochar is a policy arrangement consisting of different policy fields (including climate change, food production and agricultural waste management), which is driven by distinct groups of actors and their interests. For this reason, due to its ability to incorporate a multiplicity of perspectives, PAA may provide insights into the historical and current networks, ideas and (informal) (dis)agreements on biochar arrangements in Brazil, and how they Reparixin affect national policy fields. A policy arrangement is defined as the way in which the organization and contents of a certain policy field are temporarily moulded in terms of discourses, actors, resources, rules and their relationships (Arts and Buizer, 2009, Liefferink, 2006 and Veenman et al., 2009). Four interrelated dimensions are used to describe a policy arrangement: (1) actors and their networks involved in a policy field; (2) discourses that capture the views and positions of the actors – or coalitions of actors – involved; (3) resources (e.g. money, knowledge, facilities), and their division of among actors and the power relations they imply; and (4) rules and regulations (both formal and informal) that shape both the arrangement and the policy absorptive feeders produces (Liefferink, 2006).