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Nutrient pollution creates fertile ground for algae blooms
In Toledo, Ohio, Mayor Michael Collins ended a three-day ban on public water due to high toxin levels, likely caused by a massive algae bloom on Lake Erie. This year’s algae build-up came earlier than usual and officials warn it won’t be the last. Gwen Ifill talks to Marlene Harris-Taylor of The Toledo Blade and Anna Michalak of the Carnegie Institution for Science about the contamination.
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