Ключевые слова: 2019, 27 september, activism, activist, banner, canada, canadian, change, children, climate, climate change, climate march, climate policy, crisis, crowd, demonstrate, demonstration, earth, environment, environmental, future, global, global warming, green, kids, march, montreal, mother earth, movement, not for sale, people, politics, poster, protest, protester, protesters, protesting, quebec, sign, strike, warming, youth strike for climate,