Primary clarifier tanks sit at the Cedar Rapids Water Pollution Control Facility in Cedar Rapids on Nov. 4. The clarifier tanks allow large items in the water to settle at the bottom of the tank while ...
Every other Friday, the Outside/In team answers one listener question about the natural world. This week, Jeannie from Burlington, Vt., asked us about wastewater treatment plants. She said she's ...
Scientists found a way to help plants grow while staying disease resistant, a discovery that could improve food production.
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