Green anarchism is a school of thought within anarchism which puts an emphasis on environmental issues. Some green anarchists can be described as anarcho-primitivists and sometimes anti-civilization anarchists, though not all green anarchists are primitivists. Likewise, there is a strong critique of technology among some green anarchists, though not all reject it entirely. Sometimes green anarchism is said to be techno-positive or techno-negative to differentiate between those who advocate use of advanced green technology to create and maintain an anarchist society and those who mainly see civilization and modern technology as something negative.