Illustration by Rob Dobi for the Star Tribune Outside Two Harbors, Minn., on a cliff overlooking the broad expanse of…
Proposed rules on agriculture fertilizer would help protect groundwater. It’s hard to persuade residents of a state whose very name…
Saturated buffer along unnamed tributary to the Skunk River, Iowa. Photo by Kent Heikens USDA, Agricultural Research Service. Fertilizer used…
photo: Friends of the Mississippi River executive director Whitney Clark pours water from the Mississippi River into a tube used…
Water pollution, chemical spills, and algae blooms can wreak havoc on a community, not only by affecting the water supply…