Greenpeace activists label an outer wall of TNC Chemicals Philippines Inc. with the words 'Water Polluter', in Calamba, Laguna. Activists also unfurl a banner listing the different hazardous chemicals previously identified in a sampling report by the environmental organization as the recipe for the toxic pollution in Laguna Lake. The labeling of TNC's facility is part of the series of activities highlighting industrial pollution under Greenpeace's 'Right-to-Know Water Patrol Expedition' launched this month that aims to expose water polluters, investigate and document potential polluters along Marikina River and Laguna Lake, and draw support for the enactment of policies to bring down toxic pollution to zero levels.