Washington is one step closer to eliminating a major blind spot for potential contaminants in crops grown across the state using human waste as fertilizer. Lawmakers voted unanimously last week to ...

Researchers have succeeded in establishing a method for producing recycled liquid fertilizer that contains high concentrations of phosphorus. Growing plants can be a joyous, yet frustrating process as ...

A Des Moines metro wastewater facility plans to recycle waste into fertilizer for crops. The $45 million project aims to reduce phosphorus runoff into the Des Moines River. The new process could ...

Climate Lab is a Seattle Times initiative that explores the effects of climate change in the Pacific Northwest and beyond. The project is funded in part by The Bullitt Foundation, CO2 Foundation, Jim ...