Ключевые слова: activism, anonymity, building, campaign, change, child, children, civil, concept, day, demonstration, disobedience, earth, ecology, environment, expression, future, global, green, group, idea, inspiration, manifestation, message, movement, opinion, park, participation, peaceful, people, planet, poster, problem, promotion, protection, protest, public, save the planet, social, solar, solution, trees, yellow,