Amory Lovins is an American physicist, environmentalist, and author known for his work in energy efficiency and sustainable development. He co-founded the Rocky Mountain Institute, a nonprofit organization that promotes resource efficiency and renewable energy solutions. Lovins has written extensively on the importance of transitioning to sustainable energy systems. He is recognized for his innovative ideas, such as the concept of "negawatts," which refers to energy savings that can be treated as a resource. Lovins has received numerous awards for his contributions to environmental science and policy, influencing both public and private sectors in their approach to energy use.