Dead Zones

A phytoplankton bloom in the Arabian Sea and Gulf of Oman (upper right).
Environment

Underwater Robots Identify a Vast Dead Zone in the Gulf of Oman

Researchers found a nearly oxygen-less dead zone the size of Florida in the Arabian Sea.

Dead zones are often caused by the decay of algae during algal blooms, like this one off the coast of San Diego, California.
Environment

More Precipitation, More Problems

Dead zones in our oceans are a man-made problem, which climate change is likely to make much worse.

Environment

Resuscitating Coastal Dead Zones Starts Far From Shore

Grace S. Brush, the foremost ecological historian of Chesapeake Bay, America's largest estuary, examines the historical connections between land use, nitrogen and coastal dead zones.