If large global summits do not achieve much in terms of commitments for environmental change, do you think they serve some other purpose

If large global summits do not achieve much in terms of commitments for environmental change, do you think they serve some other purpose Paper details: If large global summits do not achieve much in terms of commitments for environmental change, do you think they serve some other purpose need this topic in essay and it should be main based on terms of commitments for environmental change, do you think they serve some other purpose also consider COP21 AND WSSD also talke information from second edition global politics edited by jenny edkins and maja zehafuss