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USGS Global Change Research Program
The U.S. Geological Survey's Global Change Research Program is an international source for ground-based and remotely sensed earth science data and information used by global change researchers and contributing to assessments of the potential effects of global change on society.

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1 dry lake 1 1
2 rio puerco river 1 2
3 owens lake ca 1 1
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5 land subsidence 1 1
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7 southwestern united states map 1 2
8 range of the desert tortoise 1 2