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What Connects Bones, Bird Poop, and Toxic Green Slime? Hint: Without It, Half of Us Wouldn't Be Alive Today

Gastropod

CHAPTER

The Devil's Element: A Threat to Lake Erie

By 2000, Lake Erie's pollution problems were thought to be a thing of the past. The Clean Water Act regulated something called point source pollution. But recently, a new threat has emerged: phosphorus runoff from agriculture fields. What is going so wrong this time and what are we going to do about it?

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