The Simple River-Cleaning Tactics That Big Farms Ignore

In Iowa and elsewhere, runoff from fertilized fields pollutes drinking water and creates dead zones. Yet straightforward solutions exist.

Read This Next

Battle to control America’s ‘most destructive’ species: feral pigs

How coffee can help forests grow faster

The forgotten fossil hunter who transformed Britain’s Jurassic Coast

Go Further

Subscriber Exclusive Content

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet