Energy efficiency concepts, environment and nature

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Photo credit: © Stefano Alberti / Alamy / Afripics
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Keywords: aim, alternative, battery, care, clean, color, colorful, concept, eco, ecology, efficiency, efficient, electric, electricity, energy, environment, environmental, expertise, global, goal, good, green, high, industry, innovation, nature, people, power, problem, renewable, resilient, save, security, shape, speed, sustainable, target, technology, top, wind