What reasons does Jim Greenman give for the importance of nature in children's learning and development?

Jim Greenman emphasizes that nature provides rich sensory experiences, opportunities for physical activity and risk-taking, and a sense of wonder and awe that can stimulate curiOSity and creativity in children. He believes that connecting with nature helps children develop a sense of stewardship for the environment and fosters a deep connection with the world around them, supporting their holistic development.