Ключевые слова: air, air pollution, america, angeles, background, bad, building, buildings, california, cancer, carbon, centre, city, climate, dirty, disease, downtown, ecology, editorial, effect, energy, environment, environmental, event, fight, fog, hazy, hazy sky, horizon, industry, la, los, los angeles, lung, pollute, polluted, pollution, silhouettes, skyscrapers, smog, smoggy, smoke, steam, stock, structures, unhealthy, usa, visibility, weather, white,