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Once a vast carpet of healthy vegetation, the Amazon rain forest is changing rapidly.
This color-coded satellite image of Bolivia shows dramatic deforestation in the
Amazon Basin. Loggers have cut paths into the forest, while ranchers have cleared
large blocks for their herds. Fanning out from many of these clear-cut areas are
settlements built in radial arrangements of fields and farms. Healthy vegetation
appears bright red in this image. (USGS/NASA)
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