Greenpeace activists use food coloring to ‘wash’ T shirts beside the Marikina River. The activists are illustrating how hazardous chemical residues in clothing items sold by major brands are released into public waterways when they are washed by consumers. This was shown in a study conducted by Greenpeace and released in the "Dirty Laundry: Reloaded" report. Greenpeace is challenging the textile industry to lead the elimination of toxic chemicals.