An organization known as SkyTruth has used satellite imagery and mapping techniques to tackle environmental issues such as mountaintop-removal mining and illegal fishing activity. The organization's reputation was made after the BP oil spill, when founder John Amos determined the scope of the disaster was much larger than official estimates indicated. Satellite imagery has "revolutionized the whole way we analyze things; it's transformed the way the Earth is pictured," said Virginia Tech geography professor James B. Campbell.

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