National Research Council - Time Running Out On Gulf Dead Zone - Concerted Action Needed Now - NOTP

[hatrack]

After years of piecemeal efforts to reduce Mississippi River pollution that leads to the Gulf of Mexico's annual "dead zone" disturbance, the Environmental Protection Agency and the U.S. Agriculture Department need to take quick action in pinpointing and reducing the source of the problem, says a new report from the National Research Council. Agricultural practices in the nation's Heartland are a major contributor to the dead zone problem, and the report points out that EPA and USDA have not effectively coordinated upstream pollution-control measures to tackle the problem: a lifeless, oxygen-depleted swath of Gulf waters nearly the size of New Jersey.

Even with a more robust program to reduce river pollution, the report notes that it could take decades to reverse the damage. "The longer that decisive actions to address this problem are delayed, the longer it will take until effective approaches are implemented," the report states. "Given that it will require years, if not decades, to see downstream responses to nutrient control actions, it is important to begin quickly and move forward decisively."

Both agencies must establish a water quality center for the entire river basin, which would examine the effectiveness of conservation programs along waterways that carry excess nutrients such as nitrogen and phosphorus into the river and, eventually, the Gulf.

Fertilizer runoff and wastewater discharges from 41 percent of the continental United States flow into the Mississippi River, carrying tons of excess nutrients that eventually flow into the Gulf. When mixed with sunlight, those nutrients spark algae blooms that later die and suck up oxygen vital for marine life. Despite a 2001 pact to reduce the dead zone among federal agencies and basin states, it has continued to grow. No single agency is responsible for addressing the problem, and there is no federal money targeted to addressing the dead zone. So a broad array of overlapping state and federal agencies -- from Minnesota to Louisiana, from the EPA to USDA -- are left to address bits of the problem. EPA has explicit authority under the Clean Water Act to regulate discharges from pipes or industrial polluters, but controlling diffuse forms of pollution such as runoff from farms is more difficult.

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http://www.nola.com/news/t-p/index.ssf?/base/news-0/1229926823221940.xml&coll=1

[jody]

1. If the Mississippi River causes the Gulf Dead Zone, how can fish from the river be edible? Related

question, do some cities along the Mississippi River use it for their water supply?

[morningglory]

2. Yes, and it tastes crappy. Tea and coffee, instead of having a nice brown

color, are black and foul-tasting. We bought our water when in New Orleans in the '60s. It may be a better situation now.

[kristopher]

4. The problem is "nutrients"

As in too much of the basic ingredients in fertilizer. Google "nutrient pollution" and then "hypoxia".

The Clean Water Act in the 70s has done a great job of getting rid of people dumping chemicals, raw sewage and industrial wastes, but agricultural runoff, lawn fertilizers and poorly maintained, old septic systems bleeding into underground aquifers is the root cause of this problem and they are very difficult to control. Look up "point source pollution" and "non-point source pollution" for that.

I used to live on the Gulf Coast of Mississippi, it is creepy at how dead the water is...

[kristopher]

3. This is an example of why I say NOAA is a toothless tiger... nt

[tom_paine]

5. Why do you hate America?

:sarcasm: