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Image: Northern Forest Trend in Photosynthetic Activity

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Description: Change in Photosynthetic Activity in Northern Forests 1982-2003
Title: Northern Forest Trend in Photosynthetic Activity
Credit: http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=17252 Archive: https://web.archive.org/web/20090202145056/http://earthobservatory.nasa.gov/IOTD/view.php?id=6487
Author: NASA Earth Observatory
Usage Terms: Public domain
License: Public domain
Attribution Required?: No

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