Resources

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A New Strategy to Improve Water Quality—One Targeted Watershed at a Time

  • water pollution
  • hypoxia
  • Freshwater
  • Water Quality
More than 15,000 streams, rivers, and lakes are too polluted with nutrient runoff to support wildlife, be enjoyed recreationally, or serve as a drinking water source. Photo credit: USDA
  • water pollution
  • hypoxia
  • Freshwater
  • Water Quality
Initiatives
This website serves as an information portal about eutrophication—the over-enrichment of water by nutrients such as nitrogen and phosphorus—a leading threat to water quality around the world. Explore our interactive map and learn more.

Can Nutrient Trading Shrink the Gulf of Mexico's Dead Zone?

  • water pollution
  • hypoxia
  • Freshwater
Dead fish resulting from toxins or oxygen depletion in Lake Binder, Iowa. Photo credit: Dr. Jennifer L. Graham, U.S. Geological Survey
  • water pollution
  • hypoxia
  • Freshwater
Insights

4 Grand Challenges to Energy, Food, and Water

  • Forests
  • Freshwater
  • agriculture
  • climate change
  • Energy
  • food security
  • natural resources
  • low carbon development
  • Forests
  • Freshwater
  • agriculture
  • climate change
  • Energy
  • food security
  • natural resources
  • low carbon development
Videos

Coral Reefs - Polyps in Peril

  • coral reefs
  • coral reefs
Videos

Récifs Coralliens en Péril (Revisité)

  • climate change
  • pollution
  • Ocean
  • coral reefs
  • climate change
  • pollution
  • Ocean
  • coral reefs
Videos

Arrecifes en Peligro (Reexamen)

  • coral reefs
  • Ocean
  • pollution
  • climate change
  • coral reefs
  • Ocean
  • pollution
  • climate change
Data

Reefs at Risk from Coastal Development

  • coral reefs
  • Ocean
  • coral reefs
  • Ocean
Videos

Reefs at Risk Revisited Launch, Washington, D.C.

  • Ocean
  • pollution
  • climate change
  • coral reefs
  • Ocean
  • pollution
  • climate change
  • coral reefs
Data

Reefs at Risk from Watershed-based Pollution

  • coral reefs
  • Ocean
  • coral reefs
  • Ocean
Data
  • Ocean
  • coral reefs
  • Water Quality
Data
  • Ocean
  • coral reefs
  • Water Quality
Data

Reefs at Risk Projections: Present, 2030, and 2050

  • coral reefs
  • Ocean
  • coral reefs
  • Ocean
Data

Thermal Stress on Coral Reefs between 1998 and 2007

  • climate change
  • coral reefs
  • Ocean
  • climate change
  • coral reefs
  • Ocean
Data

Reefs at Risk from Overfishing and Destructive Fishing

  • coral reefs
  • Ocean
  • coral reefs
  • Ocean
Data

Reefs at Risk from Overfishing and Destructive Fishing

  • coral reefs
  • Ocean
  • coral reefs
  • Ocean
Data

Reefs at Risk from Marine-based Pollution and Damage

  • coral reefs
  • Ocean
  • coral reefs
  • Ocean
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