Ключевые слова: accidents and disasters, air, air pollution, apocalypse, atmosphere, climate, climate change, concepts topics, crisis, danger, destruction, dirty, dramatic sky, dusk, environment, environmental conservation, fog, forest, forest fire, gas, landscape scenery, light natural phenomenon, natural disaster, no people, nonurban scene, outdoors, pollution, skyline, smog, smoke physical structure, social issues, sun, sunbeam, sunlight, twilight,