NASA image reveals extent of 2010 Amazon drought

Mongabay: NASA image reveals extent of 2010 Amazon drought From NASA: image from the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite, the image shows vegetation 'greenness' during the 2010 drought, between July and September, compared to average conditions for the same period between 2000 and 2009 (except for 2005, the other drought year). The redder the image the less 'green' the forest. The "greenness index" measures how much photosynthesis could be happening based on how......

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