Ключевые слова: alphabet, alternative resources, background, banner, block, business, communication, concept, creative, cube, design, development, eco, ecology, economic, education, energy, environment, environmental, environmental friendly, future, green, headline, idea, letter, lettering, long term, message, motivation, needs, people, planet, present, profits, recycling, renewable, sign, social, sustain, sustainability, sustainable, text, wood, wooden, word,