A warmer climate combined with man-made circumstances are setting up a scenario for huge algae blooms on Lake Erie capable of depleting the lake's oxygen and clogging boat motors, according a report. The algae blooms could threaten the lake's multibillion-dollar economy and kill much of the fish population. A 2011 algae bloom was caused by runoff of phosphorus-laden fertilizers from nearby farms coupled with calm winds and weak water currents.

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