Ключевые слова: calamity, catastrophe, contamination, debris, difficulty, disaster, dump, dust, environment, field, forest, garbage, grass, illegal, industrial, junk, junkyard, landscape, life activity, litter, nature, nonauthorized, outdoor, park, plant, pollution, problem, refuse, road, rubbish, rubble, scene, scenery, scrap, soiling, track, trail, trash, tree, trouble, unauthorized, vital activity, walkway, waste,