 Mario Tama / Getty Images
Brazil, host of the Rio+20 Earth Summit on June 20-23, is itself struggling with balancing economic and environmental priorities. The BR-222 highway in Para state, seen here on June 9, reflects prosperity but also deforestation.
Although illegal logging in Brazil's Amazon is down 80 percent since 2004, environmentalists fear recent changes to the Forest Code will lead to further destruction.
Some 20 million people live in Brazil's Amazon, which is the size of the U.S. west of the Mississippi. The region is also challenged by farm and mine pollution, new electricity dams and illegal land speculation -- including the occupation of forest reserves and indigenous land.
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