Maria do Socorro Silva is a leader of forest dwellers – indigenous, quilombo and riverine communities – in Para, Brazil. The intimidation of Maria has come in many forms since she began defending her Amazonian home against the world’s biggest alumina refinery and its local government backers. For 10 years, she has been fighting on multiple fronts: against the Norwegian-owned Hydro Alunorte refinery in Barcarena, against the Albras bauxite mine that supplies it, against powerful land-grabbing politicians, against investors, against first-world consumers. As president of the Association of Caboclos, Indigenas and Quilombolas da Amazônia (Cainquiama), which represents thousands of local forest-dwellers, she arranged protests and filed two lawsuits against Hydro Norte. Since December 2017, two Cainquiama leaders have been murdered - Fernando Perreira on 22 December and Paulo Sérgio Almeida Nascimento on 12 March. Norsk Hydro - the Norwegian company that owns 92% of Hydro Alunorte and 51% of Albras - is not implicated in the killings and it has condemned the use of intimidation tactics.