Ключевые слова: activism, activist, banner, campaign poster, change, climate, climate change, climate march, crowd, demonstrate, demonstration, eco, ecological, environment, environmental, environmentalists, europe, european, extinction, extinction rebellion, global, global warming, great britain, green, humanity, london, march, movement, parliament square, people, placard, political, politics, pollution, poster, protest, protesters, protesting, rally, rebellion, revolution, sign, slogan, symbolic, together, tourist attraction, uk, united kingdom, warming, xr,