Bookchin was a radical anti-capitalist and always favored the decentralisation of society. His writings on libertarian municipalism, a theory of face-to-face, grassroots democracy, had an influence on the Green Movement and anti-capitalist direct action groups such as Reclaim the Streets. His criticisms of "new age" Greens such as Charlene Spretnak contributed to the divisions in the American Green movement in the 1990s.