1 The final publication is available at www.springerlink.com.

Abstract: In this article, disasters are understood as processes that have different impacts on social routines in terms of scale, scope and duration. The extent of adaptive processes in society can provide the ground for a rough classification of disaster types. Such classification has, on the one hand, practical and analytical advantages. On the other hand, they harbour the danger of overlooking transitions of scale and discourage comprehensive scale-related learning forms. Based on the disaster scale by Fischer (2003), flash floods in mountain rivers and torrents are described as extreme emergencies or small town disasters. Three given examples will clearly show that learning rarely takes place within an institutional setting that is subjected to small disasters because the stakeholder’s focus remains on only one level. Therefore, we propose to implement a system of self-organised and scale independent learning, so called deutero learning, within the political subsystem. Following a damaging event, participative processes, that involve all levels, should be initialised. Their task would be to assess the combination of causes and draw conclusions for mitigation measures. An aggregation of these assessments would help the responsible political subsystems to adapt the current natural disasters policy to the changing environmental conditions