Lawrence Christian Verzosa Home of ecosystem services, San Pablo’s seven lakes served as the lifeline of local communities and tourism in Laguna—bringing forth the beauty that was accidentally created by phreatomagmatic eruptions. Photo Courtesy of San Pablo City Association. Lakes Bunot, Calibato, Palakpakin, and Sampalok are used for fishery mainly for milkfish or tilapia, while Lakes Mojicap, Pandin, and Yambo are sites for ecotourism. As vital sources of income, these lakes eventually gave rise to human activities, demanding for up-scaled production and technology such as construction of fish pens. Consequently, these gifts of nature are in danger as their water quality deteriorates, according to the recent water assessment of the University of the Philippines (UP) Los Baños and the Philippine Council for Agriculture, Aquatic and Natural Resources Research and Development of the Department of Science and Technology (DOST-PCAARRD). In a Saribuhay episode, UP Los Baños Assistant Prof...