Earth Day comes back around this year on April 22nd. The theme of the 2023 observance is \“Invest in our Planet.\” When we think of investment, we almost always think of money, but we’re focusing on investment in education and awareness. WEMU's David Fair catches up with Susan Westhoff. She is president and executive director of the Ann Arbor Hands-on Museum and Leslie Science and Nature Center. In her conversation with David Fair, you'll find out how those investments are paying off in our community.