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What is hypoxia?

Hypoxia, or low oxygen, is an environmental phenomenon where the concentration of dissolved oxygen in the water column decreases to a level that can no longer support living aquatic organisms. Hypoxic areas, or “Dead Zones,” have increased in duration and frequency across our planet’s oceans since first being noted in the 1970s.

The largest hypoxic zone currently affecting the United States, and the second largest hypoxic zone worldwide, is the northern Gulf of Mexico adjacent to the Mississippi River.

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Gulf hypoxia in the news:

CBS This Morning – Massive dead zone in Gulf of Mexico

August 16th, 2017|Comments Off on CBS This Morning – Massive dead zone in Gulf of Mexico

"Largest" dead zone recorded in U.S. threatens marine life Air Date: 08/16/17 The largest dead zone ever recorded in the U.S. has appeared in the Gulf of Mexico. It is primarily caused by fertilizer and [...]

Top of Mind with Julie Rose – The Dead Zone

August 14th, 2017|Comments Off on Top of Mind with Julie Rose – The Dead Zone

World Events, Hope Dealers, The Dead Zone Originally aired: Aug 14, 2017 Guest: Nancy Rabalais, PhD, Professor, Department of Oceanography and Coastal Sciences, Shell Oil Endowed Chair in Oceanography/Wetland Sciences, Louisiana State University, Distinguished Research [...]

Gulf of Mexico dead zone is going in the wrong direction: Editorial

August 6th, 2017|Comments Off on Gulf of Mexico dead zone is going in the wrong direction: Editorial

By The Times-Picayune Editorial Board August 6, 2017 Sixteen years after voluntary limits on fertilizer went into effect, the dead zone in the Gulf of Mexico this year is the largest since scientists began measuring it in [...]

Our Views: Setting a ‘dead zone’ record in Gulf

August 5th, 2017|Comments Off on Our Views: Setting a ‘dead zone’ record in Gulf

Advocate Editorial August 5, 2017 Much of Louisiana was built by the sediments brought down over millennia by the great Mississippi River, and it continues today to generate wealth in this country and state as [...]

The Gulf of Mexico dead zone is larger than ever. Here’s what to do about it.

August 4th, 2017|Comments Off on The Gulf of Mexico dead zone is larger than ever. Here’s what to do about it.

By Jenna Gallegos | The Washington Post August 4, 2017 Scientists just measured the largest dead zone ever recorded for the Gulf of Mexico, a whopping 8,776 square miles, massive enough to cover all of New Jersey. And [...]

The biggest ever “dead zone” in the Gulf of Mexico is the size of New Jersey

August 3rd, 2017|Comments Off on The biggest ever “dead zone” in the Gulf of Mexico is the size of New Jersey

By Ruairi Arrieta-Kenna | Vox August 3, 2017 The man-made problem is an environmental disaster and an economic threat. The National Oceanic and Atmospheric Administration (NOAA) announced Wednesdaythat this year’s “dead zone” in the Gulf of [...]

Gulf of Mexico Dead Zone in Need of Bold New Approaches

August 2nd, 2017|Comments Off on Gulf of Mexico Dead Zone in Need of Bold New Approaches

Louisiana State University Media Center August 2, 2017 Shrinking the annual Gulf of Mexico Dead Zone down to the size of Delaware will require a 59 percent reduction in the amount of nitrogen runoff that [...]