Ключевые слова: air, animal, background, blue, business, change, clean, climate, climate change, color image, concept, conservation, contrasts, development, dirty, earth, eco, ecology, ecosystem, emission, energy, environment, environmental, factory, forest, friendly, fumes, future, global, green, growth, horizontal, industrial, industry, innovation, light bulb, marine, nature, no people, ocean, pollution, problem, renewable, renewable energy, sea, sky, social issues, steam, sustainability, sustainable, swim, swimming, technology, tropical, turtle, underwater, warming, waste, water, wildlife,