Eco-fascism is emerging at both the highest levels of state and the lowest reaches of the political underworld. However, this may be only part of a much larger, more idealogically complex, emerging extremist threat. The climate crisis–and the crisis of global financial capitalism from which it is inextricable–may yet be driving a realignment of extremist environmental politics. An exploratory analysis of radical environmentalist discourse on the Twitter platform reveals the emergence of an ecological extremism that confounds contemporary understandings of the left, right, authoritarian and liberal. If this represents the future of eco-extremism, it may be necessary for researchers and practitioners to reorient the frameworks that guide their assessment of emerging risks.