15 Jun 2011:
Largest Gulf ‘Dead Zone’
Anticipated in Wake of Spring Floods
The Gulf of Mexico’s hypoxic zone, an oxygen-depleted area created by excessive nutrient pollution, is expected to reach record proportions this year
as a result of the extreme flooding in the Mississippi
River basin, according to a forecast by the National Oceanic and Atmospheric Administration (NOAA). Using nutrient load data compiled by the U.S. Geological Survey, scientists calculate that the hypoxic zone, also known as the “dead zone,” could cover 8,500 to 9,421 square miles, an area about the size of New Hampshire. The dead zone — which is created when algal blooms remove oxygen from the water and suffocate marine life — has reached an average 6,000 square miles during the last five years. But with the flow rate of the Mississippi and Atchafalaya Rivers nearly double the normal rate this spring, the quantity of nutrients entering the Gulf is about 35 percent higher than usual, according to NOAA. The dead zone, located along the coast, forces Gulf fishermen farther offshore.
Yale Environment 360 is
a publication of the
Yale School of Forestry
& Environmental Studies
Yale Environment 360
articles are now available in Spanish and Portuguese on Universia
, the online educational network. Visit the site.
Business & Innovation
Policy & Politics
Pollution & Health
Science & Technology
Antarctica and the Arctic
Central & South America
Tribal people and ranchers join together to stop a project that would haul coal across their Montana land. Watch the video.
is now available for mobile devices at e360.yale.edu/mobile
A, aerial view of why Europe’s per capita carbon emissions are less than 50 percent of those in the U.S. View the photos.
The 2015 Yale e360 Video Contest winner documents a Northeastern town's bitter battle over a wind farm. Watch the video.
video series looks at the staggering amount of food wasted in the U.S. – a problem with major human and environmental costs. Watch the video.
video goes onto the front lines with Colorado firefighters confronting deadly blazes fueled by a hotter, drier climate. Watch the video.
A three-part series Tainted Harvest
looks at the soil pollution crisis in China, the threat it poses to the food supply, and the complexity of any cleanup. Read the series.