Celebrate the planet with activities for the whole family. Create eco-friendly art and science projects and enjoy planetarium shows that celebrate the environment (12:30, 2, and 3:30 pm). See an original performance by Nannyhagen Creek (1:30 pm) in honor of Pete Seeger’s 100th birthday, and hear from Dr. Gavin A. Schmidt, Director of the NASA Goddard Institute for Space Studies at Columbia University (3 pm), who will discuss the state of climate science.