A worker's back is seen while loading charcoal produced from illegally harvested Amazon rainforest wood. Illegal charcoal camps were found to sometimes result in slave labor and the destruction of rainforest on protected indigenous lands. Between 2003-2011, 2,700 charcoal camp workers were liberated from conditions akin to slavery, according to Greenpeace. The worker in this photo said he was paid $40 per truckload of charcoal.

• Rio Climate Summit: Top 10 Priorities for a Planet in Peril