The term ecofeminism has been widely used since the late 1980s to name a growing political, cultural and intellectual movement, both activist and academic. Ynestra King has named it ‘the third wave of the women's movement’. Its defining claim is that the destruction of the environment and the historical oppression of women are deeply linked.

Ecofeminist thinkers come to environmental issues expert in controversies about distinctions between sex (‘natural’) and gender (‘cultural’), questions of whether the category ‘woman’ or ‘women’ has any clear natural referent or is not, in fact, an unstable product of social conditions. This helps render ecofeminism perhaps the most sophisticated and intellectually developed branch of environmental criticism. It is especially sensitive to the environmental implications of differing conceptions of human personhood. Nevertheless, as Glynis Carr writes, ‘While ecofeminist philosophy and politics are relatively well developed, ecofeminist literary theory and criticism are not’, a discrepancy that arguably applies to ecocriticism generally.

The following statement by Donna Haraway would now command almost universal consent among ecofeminists and the majority of ecocritics: