26-year-old Bertha Zúniga Cáceres is demanding justice for the death of her mother Berta Cácares Flores. Zúniga has criticized the Organization of American States and called for an independent investigation into the death of her mother, who won the Goldman Environmental Prize for her work protecting forests and rivers, and other climate activists who have disappeared or been murdered for their opposition to the construction of mega-dams. Photo credit: Jahi Chikwendiu/The Washington Post