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The problem of interdependence is crucial for understanding the climate, with its interactions between land, water and atmosphere, as well as with human activities, past and future. The concept of interdependence expresses two types of relationship, that of causality and that of responsibility. For the problems of climate governance as understood as a statistical average in the Conferences of the parties (COP), causal dependence is impossible to reconstruct precisely, notably because of the complexity of these phenomenons. However, dependence does not only concern the domain of being, falling within the natural sciences and social sciences and human descriptivo-predictive. It also concerns the ought-to-be and therefore the normative sciences (ethics, political thery, law and normative economy). Here interdependence is much more problematic since it is opposed to freedom. The article discusses the various interdependencies and political solutions that are offered to take care of this needs, architectures for discussing climate change politically: systems (N. Luhmann) and deliberation (J. Habermas). He proposes then another solution, that of the moral and political consediration.