Ключевые слова: activism, activist, background, banner, change, climate, climate change, concept, conservation, crisis, crowd, demonstration, disaster, earth, earth day, eco, ecology, editorial, environment, environmental, epidemic, future, global, global warming, globe, green, march, movement, natural, nature, outdoors, people, planet, politics, pollution, poster, protect, protest, protester, protesters, save, sign, street, strike, students, sustainability, symbol, warming, world,