Your site belongs here if it is about
Activism on a local or regional scale may be better represented in the sub-categories of Society: Issues: Environment: Conservation and Endangered Species: Regional.
Other types of environmental activism are represented in Society: Issues: Environment: Activism and Society: Issues: Environment: Sustainable Development: Activism
Activism is about "doing" -- activities ranging from writing letters to chaining yourself to a tree. This category is for sites which organize, promote or describe such activities, on a global scale.