FILE – In this Aug. 3, 2014, file photo, the water intake crib for the city of Toledo, Ohio, is surrounded by an algae bloom on Lake Erie, about 2.5 miles off the shore of Curtice, Ohio. Researchers are working on creating an early warning system that can spot when algae begins showing up on hundreds of lakes across the U.S., using real-time data from satellites that already monitor harmful algae hotspots on Lake Erie in Ohio and on the Chesapeake Bay along the East Coast. (AP Photo/Haraz N. Ghanbari, File)
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