An attitude or movement involving concern about pollution, resource depletion, population pressures, biodiversity loss and other environmental issues. Usually implies involvement in action to address those concerns.

individuals' and organizations' concern, often via coalition or crusade-type drive, the protection and improvement of the environment in which we live; a movement involving citizens who care, businesses of all types, and government at all levels.

the activity of protecting the environemnt from pollution or destruction

the philosophical doctrine that environment is more important than heredity in determining intellectual growth

The philosophy of living in harmony with the global ecosystem. 892

a term which used to mean geographic determinism, but which now has the popular meaning of having a consciousness for preservation and/or conservation of natural resources

Environmentalism refers to the conscious examination of one's impacts on the natural world.