On March 25, 2017, the Municipal Government of Tanay through the Municipal Environment and Natural Resources joined the 10th year worldwide celebration of Earth Hour 2017 with the theme: “Shine a light on Climate Action”. This global activity aims to enlighten our people about the importance of conserving our valuable energy by switching off non-essential lights in our homes, offices and establishments for an hour. It was participated by the Provincial Government of Rizal represented by Vice Governor Junrey San Juan accompanied by Honorable Rex Manuel C. Tanjuatco, Vice Mayor Jaime B. Vista and Liga ng mga Barangay President Ruel P. Estrella.
During the lights off (8:30-9:30 p.m.), ten different groups including the Tanay Youth Center, San Ildefonso College, Salvation Army, Tanay Municipal Police Station, University of Rizal System, Tanay National High School, Tanay West NHS, Tanay North NHS, Aldea National High School and Tanay Mountaineers performed their environmental presentations.