Brazil's Amazon guardians: fallen trees are seen during an operation to combat illegal mining and logging conducted by agents of the Brazilian Institute for the Environment and Renewable Natural Resources, or Ibama, supported by military police, in the municipality of Novo Progresso, Para State, northern Brazil, 11 November 2016. Photo: Ueslei Marcelino / REUTERS

11 November 2016 (Reuters) – Brazil’s Amazon guardians: fallen trees are seen during an operation to combat illegal mining and logging conducted by agents of the Brazilian Institute for the Environment and Renewable Natural Resources, or Ibama, supported by military police, in the municipality of Novo Progresso, Para State, northern Brazil, 11 November 2016. Photo: Ueslei Marcelino / REUTERS

Pictures of the year: Environment