Some inappropriate ways of activism, like road blockage, art vandalism, assaults, etc., have been recently conducted and risked causing adverse repercussions, including violence escalation. The study explores which types of environmental activism are more likely to escalate violence between activists, affected citizens, and police. Bayesian Granular Interaction Thinking Theory (GITT) analytics was employed to analyze a dataset of 89 blockage, vandalism, and harassment cases in 13 countries in this exploratory study. We discovered that rallies and demonstrations, marches, event disruption, and art vandalism were less likely to escalate violence between protestors, other citizens, and the police. In contrast, road blockades and assaults are more likely to lead to violence escalation. Apart from those, sabotage was found to have an ambiguous relationship with the violence escalation. We suggest that climate activists should be more selective in adopting activism approaches to raise public awareness and support and avoid using tactics that might be counterproductive.