Assertion: anarchist | /r/CapableOf | agitate for natural environment
Facets:
value: since the late 1970s
type: TEMPORAL
Source sentences:
text: The environment and sustainability have been an issue for anarchists from at least as far back as Peter Kropotkin's 1899 book Fields, Factories and Workshops, but since the late 1970s anarchists in English-speaking world and European countries have been agitating for the natural environment.