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Algae Bloom | by Mapbox
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Algae Bloom

Algae Bloom off the Coast of Estonia on July 16th, 2002. Cyanobacteria can be found in almost every terrestrial and aquatic habitat. With the appropriate conditions these can bloom and be seen from space as blue-green patches that swirl following surface currents. Lines cutting across the image are the traces of ships. Factors that lead to these blooms include low winds, increasing temperatures, and nutrients such as phosphorus (often byproducts of fertilizer runoff along the rivers). These blooms can be toxic and are often monitored from air and space.

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Taken on January 23, 2014