environmentalism

This term encompasses both the active political struggle to enact protective laws and the underlying ethical framework that views nature as having intrinsic value. It carries a strong connotation of urgency and moral obligation, often contrasting industrial expansion with ecological preservation.

As an abstract noun representing a philosophy or a collective movement, it is uncountable. It does not take a plural form in standard usage, as it refers to a singular conceptual system or a global social phenomenon rather than individual instances of a practice.