 Environmental movement, the environmental movement sometimes referred to as the ecology movement also including conservation and green politics, is a diverse scientific, social, and political movement for addressing environmental issues. Environmentalists advocate the sustainable management of resources and stewardship of the environment through changes in public policy and individual behavior. In its recognition of humanity as a participant in not-enemy of ecosystems, the movement is centered on ecology, health, and human rights. The environmental movement is an international movement, represented by a range of organizations, from the large to grass roots and variants from country to country. Due to its large membership, bearing and strong beliefs, and occasionally speculative nature, the environmental movement is not always united in its goals. The movement also encompasses some other movements with a more specific focus, such as the climate movement. In its broadest, the movement includes private citizens, professionals, religious devotees, politicians, scientists, non-profit organizations and individual advocates.