To mark World Water Day, Greenpeace activists, volunteers and the general public place posters by the Chao Phraya River as part of the ongoing "Detox" campaign calling on the fashion industry to eliminate hazardous chemicals from their supply chains. The posters, covered with a special non-toxic ink, when washed reveal the fashion industry's "Dirty Little Secret" whose products contain chemicals that break down in water to form toxic and hormone-disrupting substances.