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Dust storm over China
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Published March 31, 2007
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Deforestation in Rondonia, Brazil
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This pair of images reveals how dramatically and rapidly the Amazon can be transformed. The images compare deforested areas (tan) to forest (green) in 2000 (top) versus 2006 (bottom). The area, which is in southern Rondônia southwest of the Pacaás Novos National Park, was almost completely cleared during the period. The decreased greenness of the remaining forest in 2006 may be from a variety of causes: drought, degradation from logging or accidental fire, or different angles of observation during the two satellite overpasses.
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Dust storm in the Gobi Desert
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Published March 30, 2007
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Eruption of Shiveluch Volcano, Kamchatka Peninsula
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Satellites usually capture images of volcanic ash plumes as they are blowing away. This image is different.
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Eruption of Shiveluch volcano, Kamchatka Peninsula, eastern Russia
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Published March 29, 2007
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River Plumes Threaten Great Barrier Reef
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In late February 2007, NASA satellite images revealed that even the outer portions of the Australia’s Great Barrier Reef can be bathed in land-based pollution carried far offshore by plumes of river water. Conventional thinking was that river plumes affected only the lagoon and the inner portions of the reef. But images from the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite verify a new theory that not even the outer reefs are spared the impact of land-based pollution, which includes excess sediment, fertilizers, and pesticides.
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Fires in Myanmar
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Published March 28, 2007
Dust Storm in Northern China
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