Do: Participate in the 40th anniversary of Baynanza, held the morning of April 23, with Biscayne Bay cleanup across 27 locations. Do: Head to Everglades National Park on April 23 for Earth Day art programs at the Flamingo Visitor Center. Do: Contemplate climate change-inspired art at the “Here Today, Gone Tomorrow” show, from April 22-24, at Unbranded Brewing Co.