Art shines light on plastic pollution A new Anderson Collection art exhibition focuses on humankind’s negative impact on natural bodies of water.   Titled Convergence Zone, the exhibition features artworks by Deborah Butterfield, who is known for her ghost horse sculptures; artist and ocean scientist Ethan Estess, BS ’11, MS ’12; eco-artist pioneers Helen and Newton Harrison; and Jean Shin, the 2022-23 Denning Visiting Artist and an artist-…