Eutrophication and Hypoxia | World Resources Institute

Interactive Map

Explore our interactive map and learn more about eutrophic and hypoxic areas worldwide.

Gallery

See media such as pictures and videos.

Photo Credit: Palm Beach County Reef Rescue | Marine Photobank

News & Events

What is the latest?

Photo Credit: Greenpeace China

Resource Library

Browse our collection of websites, tools and publications related to eutrophication and hypoxia.

Photo Credit: Marufish | Flickr

About Eutrophication & Hypoxia

Learn about impacts, sources, drivers and solutions to eutrophication.

Photo Credit: F. Lamiot | Wikimedia Commons

What Is Eutrophication?

Eutrophication—the over-enrichment of water by nutrients such as nitrogen and phosphorus—is a leading threat to water quality around the world. Also known as “nutrient pollution,” eutrophication upsets the natural balance of aquatic ecosystems, which can lead to algal blooms, red tides, hypoxic or “dead” zones, fish kills, and, eventually, ecosystem collapse.

More about eutrophication »