of existent non-political, non-military global problems, which Functionalists consider to be the very origin of conflict within the global community, is what they aim to pursue. However, critics point out some limitations of functionalist assumption: in practice, dealing with functional matters does not necessarily and always facilitate cooperation; its simplified assumption overlooks different causes of state conflict. The proliferation of functional international organizations has occurred without adequate reorganization and coordination efforts due to a lack of central global governance to ensure accountability of such organizations. As a result, a pattern of decentralization could be observed among functional international organizations to the present day. Notably, the League of Nations' effort to coordinate functional international organizations in the field of social and economic cooperation through establishment of UN Economic and Social Council has been futile. As a result, the idea of decentralization prevails to the present day except in cases of special cooperative relationships between Economic and Social Council and some functional organizations. Subsequently, summits such as the World Summit for Social Development in 1995, the Millennium Summit in 2000 and Earth Summit 2002 were held to address and coordinate functional cooperation, especially regarding the social and economic aspects. Substantive functions of functional international organizations include human rights, international communication, health, the law of the sea, the environment, education and information, international relief programs, refugee support, as well as economic development. See also References Works cited Further reading Pdf. External links Global Power Barometer International relations theory Decentralization