Ключевые слова: alternative, art, black, clean, climate, concept, conservation, decarbonization, design, development, eco, ecology, efficiency, emissions, energy, environmental, friendly, fuel, future, graphic, green, h2, hydro, hydrogen, icon, iconography, illustration, innovation, leaf, line, minimalist, modern, natural, outline, power, protection, renewable, resources, simple, solutions, sustainability, sustainable, symbol, technology, transition, white, zero,