The Netherlands is facing rising sea level, occasional river flooding, or intense rains and drainage problems as a possible consequence of climate change. This is why we conceptualize natural disasters in this paper as creeping developments (rather than sudden focus events). In this paper we study how different actors involved in the governance of natural disasters use different scale arguments, which we call scale frames. We ask 1) How the scale framing influences the boundary work, that is, the relationship between knowledge providers and decision makers? 2) How scale framing influences the involvement of particular interest groups (rather than others)? and 3) How these group use knowledge in their attempts to influence the decision?