The "Circle of Silence" is a street activist movement, organized by the Portuguese Veganism promotion brand "O Mundo Verde".

The "Circle of Silence" is a Portuguese movement, which, with activists in a circle, holding posters and computers, shows images related to the different animal exploitations in the world. In food, clothing, beauty and cleaning products, entertainment, sports, among other exploitative situations that often go unnoticed by human beings, who, too busy with their daily lives, close their eyes to great barbarities. The images are strong, but clear. Collected in explorations in order to show the truth, so that those who see them can see what they agree with on a daily basis, and consider changing. Because it is possible to change. Because it is possible not to exploit them. Because it is possible to live well without doing it. For a better world. For Animals, for People, for the environment, for the World.