Ключевые слова: aluminum, bottles, box, brown, can, cardboard, carton, concept, conceptual, discard, discarded, ecological, ecology, garbage, glass, global, globe, green, idea, litter, mess, messy, metal, metallic, metaphor, objects, pasteboard, planet, plastic, pollute, pollution, problems, protect, protection, recycle, recycling, rubbish, rusted, soiled, symbol, tuna,