The environmentalism is a human concern that is focused on the preservation and conservation of various types of ecosystems whereas ecology is a field of science that studies the interactions between organisms and environmental factors. The primary purpose of the environmentalism is to save the ecosystems whereas ecology aims to understand and explore the ecosystems. As a result, the topics that are studied by environmentalism and ecology are different. For example, the environmental pollution and degradation of ecosystems is a major topic of the environmentalism rather than ecology. The environmentalism uses the knowledge obtained by ecologists to show the negative impact of anthropogenic influences on various ecosystems and to suggest the possible ways how to eliminate the issue.