Landfills, complexity and biogas risk assessment

The purpose of this paper is to introduce the context of complexity in landfills as a conceptual framework for biogas risk assessment procedures. The paper suggests that there is an endogenous non-predictability to landfills' accidents and sudden events, which is created by the iterative process of building a landfill and the emerging complexity that characterizes it. Following the view of complexity a conceptual framework for a new biogas risk assessment model is proposed.