1 Environmental Movements in the Philippines: The Case of the Concerned Citizens Advocating Philippine Environmental Sustainability (COCAP) John Frederick A. Lauron Master in International Studies College of International, Humanitarian and Development Studies Miriam College Foundation Quezon City, Philippines jflauron@yahoo.com or jflauron@gmail.com Abstract The Concerned Citizens Advocating Philippine Environmental Sustainability (COCAP), formerly known as Concerned Citizens‟ Against Pollution is one of the environmental movements in the Philippines which have a track record in advocating environmental policies such as Clean Air Act and Clean Water Act. It was established on February 28, 1993 during the Ramos administration through the leadership of Ester de Tagle. This essay provides an analysis of COCAP, as an environmental social movement in the Philippines. Individual level of analysis was employed using the rational actor theory. The organizational level of analysis provides the context when the movement began and it provides a brief discussion of how resources are mobilized by the officers and members of the organization. The researcher concludes that six characteristics of New Social Movements outlined by Gusfield, Larana & Johnston (1994) in their book entitled, New Social Movements: From Ideology to Identity, were demonstrated by COCAP.