Ключевые слова: alphabet, background, banner, biodegradable, business, concept, conservation, crossword, design, earth, eco, ecological, ecology, element, energy, environment, environmental, green, green economy, idea, isolated, letter, message, nature, plastic, pollution, recyclable, recycle, recycling, reduce, refuse, resource, reuse, save, sign, strategy, success, sustainability, technology, text, waste, wood, wooden, word, words, zero waste,