Ключевые слова: america, banner, ca, california, children, climate change, climate strike, crisis, crowd, editorial use only, environment, environmental conservation, environmental issues, fossil fuel, global, global warming, kids, large group of people, march, market street, massive, message, movement, participants, participation, people, placard, planet, politics, protest, protestor, rally, renewable, renewable energy, san francisco, school children, sf, sign, signage, slogan, social issues, social movement, strike, strike for climate change, student, teenager, united states, usa, young people, youth strike for climate,