Ecologically motivated violence that manifests itself in the animal-rights and environmental forms is not a declining phenomenon. The fluctuating increase of the number of ecologically motivated crimes during the last 50 years, the multiplicity of the methods used (arson, food poisoning in supermarkets, destruction of equipment, attacks with the use of incentivized devices) should make us look at eco-extremism as a dynamic and difficult to grasp phenomenon. The paper is of both explanatory and prognostic nature; its goal is to present the genesis and essence of ecological radicalism, as well as to formulate the predictions for the future. In these forecasts, I wish to depart from the frequent, albeit somewhat simplistic, argument that, since the environmental extremist groups have not yet resorted to direct violence (targeting humans), and the animal-rights groups have reached for it very rarely, this state of affairs will continue in the future. This claim does not necessarily have to be true. I argue that some aspects of ideology can induce, in certain circumstances (a growing ecological catastrophe, further departure from the anthropocentric perspective), a change of the potential of radicalism within the environmental and animal-rights movements. In the case of animal-rights groups, the principle of not causing harm to people may be openly rejected, and in the case of environmental groups, the actions aimed at the annihilation of the whole human species may be undertaken.