Eco-terrorism refers to the use of illegal actions, often violent, to protect the environment or promote ecological causes. This can include activities such as sabotage, property destruction, or even threats against individuals or organizations perceived as harming the environment. Groups involved in eco-terrorism often believe that their actions are necessary to prevent greater harm to nature and wildlife. The term is controversial, as it raises questions about the ethics of using extreme measures for environmental protection. While some view eco-terrorism as a form of activism, others see it as criminal behavior that undermines legitimate environmental efforts. Organizations like the Earth Liberation Front have been labeled as eco-terrorists for their radical actions.