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News and Features by Region Louisiana Archives - Page 4 of 8 - News and Features

Two Studies Show Mississippi River Diversions Could Harm Marshland

For decades, those leading efforts to keep southeast Louisiana from being swallowed by the Gulf of Mexico have supported “Putting the river back into the marsh.” The thinking is that the river should be allowed to build new land, just as it had done for millennia before flooding was controlled. But what if pollutants in the […]

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Spring Floods May Increase This Year’s Gulf of Mexico Dead Zone

To develop an earlier prediction of the size of the Gulf of Mexico “dead zone” this summer, NOAA’s National Weather Service and National Ocean Service combined data from the National Hydrologic Assessment U.S. Spring Flood Risk Outlook with knowledge of soil saturation and typical weather patterns throughout the Mississippi watershed this year. Based on estimates of flood risk, snow pack, […]

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Restoring Louisiana Wetlands Requires More Sediment, Say Scientists

Based on a newly conducted study, an independent scientific panel reported today that existing Mississippi River freshwater diversions have not slowed the ongoing loss of Louisiana’s wetlands. Restoration of Louisiana wetlands may only be possible through significant inputs of sediment. In the report, “Mississippi River Freshwater Diversions in Southern Louisiana: Effects on Wetland Vegetation, Soils, […]

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Some call for tougher fertilizer regulations | The Des Moines Register | desmoinesregister.com

There are things Iowa farmers and other landowners can do to reduce the flow of nitrate pollution into the Mississippi River and, eventually, into the Gulf of Mexico. But some possible solutions have been repeatedly side-tracked by cost, political stalemates and uncertainty over what benefits, if any, would result in the Gulf if measures to […]

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Runoff from Iowa farms growing concern in Gulf | The Des Moines Register | desmoinesregister.com

CHAUVIN, La. — Generations of shrimpers, crabbers and oystermen have set out from this bayou village to net their catch. They share an emotional bond with Iowa’s farmers: Both harvest nature’s bounty to earn a livelihood. These fishermen depend on the sea, just as the nation’s top corn growers rely on the rich Midwest soil. […]

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Extreme Weather: A Mixed Bag for Dead Zones | WRI Insights

This post was co-authored with Bob Diaz, a WRI partner and professor at the Virginia Institute of Marine Science. This year’s extreme weather events—a warm winter, even warmer summer, and a drought that covered nearly two-thirds of the continental United States—has certainly caused its fair share of damages. But despite the crop failures, water shortages, […]

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Hypoxia Researcher Receives Prestigious MacArthur Fellow Award

Nancy Rabalais, the Executive Director of the Louisiana Universities Marine Consortium was recently awarded the MacArthur Award, for her dedicated, long-term efforts spanning multiple decades, documenting and mitigating the effects of the “dead zone” in the Gulf of Mexico. Dr. Rabalais’s work has been instrumental in making the connection between nutrient inputs from the Mississippi […]

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Meet the Fellows / Class of 2012 MacArthur Fellow / Nancy Rabalais (with video)

Nancy Rabalais is a marine ecologist who is dedicated to documenting and mitigating the effects of hypoxic zones—aquatic areas with low dissolved oxygen levels commonly known as “dead zones”—that have expanded dramatically in the Gulf of Mexico and many other coastal systems around the globe. Since the mid-1980s, she has led a long-term monitoring program […]

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