Abstract
The principle of common but differentiated responsibilities is a key principle in inter-
national climate and environmental governance. This paper explores the normative impli-
cations of the differentiation of responsibilities. I explain how responsibility as a four-digit
relation can be used to reconstruct the complex networks of responsibilities in climate
and environmental governance. I argue that depending on the area, governance level and
concrete case of climate and environmental governance, other or differently specified
norms become relevant for the differentiation of responsibilities. However, I show that
the attribution of responsibility must always consider the actors’ ability for responsibility.
I argue that it is not only the fairness of the attribution of responsibilities that matters, but
the capacity for responsibility of the relevant agents and their dependence on networks
and institutions of responsibility.