The following outline is provided as an overview of and topical guide to environmentalism:

Environmentalism – broad philosophy, ideology and social movement regarding concerns for environmental conservation and improvement of the health of the environment, particularly as the measure for this health seeks to incorporate the concerns of non-human elements. Environmentalism advocates the preservation, restoration and/or improvement of the natural environment, and may be referred to as a movement to control pollution.

Environmentalism can be described as all of the following:

These topics relate to the anthropogenic effects on the natural environment:

Timeline of history of environmentalism