There are now more than 400 known dead zones in coastal waters worldwide, compared to 305 in the 1990s, according to study author Robert Diaz of the Virginia Institute of Marine Science.
Dead zones occur when excess nutrients—usually nitrogen and phosphorus—from agriculture or the burning of fossil fuels seep into the water system and fertilize blooms of algae along the coast.
As the microscopic plants die and sink to the ocean floor, they feed bacteria, which consume dissolved oxygen from surrounding waters. This limits oxygen availability for bottom-dwelling organisms and the fish that eat them.
On a quiet street near the marsh in Charleston, South Carolina’s Rosemont neighborhood, Luvenia Brown watches...
Hexavalent chromium nanoparticles were found in air samples gathered by researchers over the course of several...
The National Hurricane Center is tracking systems in both the Atlantic and Pacific oceans on Saturday,...
A powerful storm kicked up a towering wall of dust that rolled through the city of...
