Environmental activist Deni Riswandani holds up cups of water from the Citarum river (R) and water from a tributary which runs through an area densely populated with textile factories (L) where the two meet near Majalaya, south-east of Bandung, West Java province, Indonesia, January 26, 2018. REUTERS/Darren Whiteside SEARCH "WHITESIDE CITARUM" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY