Ключевые слова: adventure, atmospheric, caution, cautionary, chemical, creek, danger, dark, ecology, energy, environment, exploration, fog, forest, gloom, hazard, impact, industrial, industry, infrastructure, journey, landscape, natural, nature, oil, ominous, pipeline, pollution, remote, risk, river, rural, safety, scenery, sign, site, source, study, symbol, toxic, transportation, trees, triangle, warning, weather, wilderness, yellow,