At the root of ecofeminism is the understanding that the many systems of oppression are mutually reinforcing. Building on the socialist feminist insight that racism, classism, and sexism are interconnected, ecofeminists recognized additional similarities between those forms of human oppression and the oppressive structures of speciesism and naturism.
—  Greta Gaard. “Toward a Queer Ecofeminism” in Hypatia (1997)