“There will be silent, because we are the change”. So Greta Thunberg , in his brief speech from the stage in front of thousands and thousands of students (more than 30,000, according to organizers), gathered for the strike from the lessons of the Bristol Youth Strike 4 Climate, the youth protest on the issue of the overheating of the Earth, and animated today in person by 17-year-old environmentalist who became a global symbol in the battle of generations for the future of the planet. “The change will be, whether you like it or not,” added Greta addressing himself in a tone of challenge to the world of adults and politics, while the crowd celebrated to its name, “Greta, Greta!”. Finally, the procession for the streets manned police officers of the city: “let’s March!”.