Amory Lovins is an American physicist and environmentalist. He has devoted his life to protecting and understanding the environment. He has written many books and articles about energy and the environment, and works to promote sustainability and renewable energy. He believes strongly in energy efficiency, finding ways to use less energy and produce less pollution. To show people how to use energy more wisely, he often shares ideas and designs for different technologies, such as solar cells and green buildings. He also works with governments and businesses to help them reduce their energy use and become more sustainable.