I think the approach used by constructivist in terms of global change centers on the states exist which shaped by social interaction and created by the identities and the interest of the people living in it. The global attributes of global change are:
(1) states are the key unit in order to understand the international political theory.
(2) the state is created is considered social and created. It is not considered as material being.
(3) it's interest and identity helps shape the social structure as well as the system inside it.
