This book was an evidence, inspired by the climate strikes all around the world. Faced with the urgency of the situation and the youth engagement, politicians can no longer remain indifferent. Young Greta Thungerg’s speeches in Davos and in Katowice at the Cop 24 gave us hope and determination. We do not want to believe in a flash in a pan ! Eighty pages which gather black and white photographs and slogans heard in the street. An actual manifesto…to wave in the next demonstration !