The Louisiana Coast: Last Call

Rising sea levels threaten communities on every American coastline, but none more so than Louisiana’s Gulf Coast, where every hour a football field’s worth of marsh disappears.

As the magnitude of global sea level rise has become better understood, coastal land loss has become an urgent concern, with scientists and public officials pondering what land can be protected or rebuilt that the rising Gulf will not wash away. We will hear from leading scientists, historians, public officials, fishermen and other stakeholders in the battle to save as much of the Southeast Louisiana coast as possible.

Support for The Louisiana Coast: Last Call comes from the Greater New Orleans Foundation, an organization that addresses the challenges facing people who live and work in the coastal communities of Southeast Louisiana.

Find more of our coverage of the environmental issues facing our region.

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Environment
7:00 am
Tue May 21, 2013

Louisiana Wetlands Experts Exchanging Ideas At Vietnam Conference

Members of the America’s Wetland Foundation are in Vietnam this week to collaborate on river management. Dutch experts are also participating.

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The Louisiana Coast: Last Call
1:32 pm
Mon May 20, 2013

Live Chat Tuesday: Talk To Bob Marshall About Challenges Facing Coastal Louisiana

Last week, we began a series on the crisis facing the Louisiana coast, reported by The Lens’ Bob Marshall and produced by our own Fred Kasten. The stories lay out the causes of Louisiana’s coastal loss and what can be done to reverse it.

Tuesday at 1 p.m., Marshall will participate in a live chat about whether there’s hope for the coast. Is it too late to reverse the accelerating loss of land? Should we spend $50 billion in restoration projects?

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The Louisiana Coast: Last Call
7:45 am
Mon May 20, 2013

The Louisiana Coast: Last Call — River Diversions

The Davis Pond Freshwater Diversion Structure in 1999 and 2003. The structure part of a project that is attempting to reverse land loss and ecosystem degradation in the marshlands.
Credit NASA Earth Observatory

It’s almost impossible to find anyone in coastal Louisiana opposed to the idea of “coastal restoration.” Storms like Katrina, Gustav and Isaac have shown everyone the value of the marshes and swamps that once stood between them and the Gulf.

But when “restore” means turning things back to the way they once were, problems can arise.

The best-known example of that is the conflict over using river diversions.

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The Louisiana Coast: Last Call
7:45 am
Fri May 17, 2013

The Louisiana Coast: Last Call — The Master Plan

Construction of the Inner Harbor Navigation Canal Surge Barrier in Lake Borgne. The barrier is 1.8 miles long.
Credit Louisiana Coastal Protection and Restoration Authority

If you’ve been listening and reading along this week, by now you know the consensus among coastal experts is that New Orleans and southeast Louisiana are headed for an early grave before the end of the century.

Because of river levees and damage from oil and gas canals, the wetlands that once protected this city from the Gulf have been reduced by more than half. And now what’s left of this landmass is sinking, at the same time the Gulf is rising due to global warming.

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The Louisiana Coast: Last Call
7:30 am
Thu May 16, 2013

The Louisiana Coast: Last Call — How We Got This Way: Rising Seas, Sinking Land

A street submerged by water in Venice, La. in 2010.
Credit Jason Saul / WWNO

The clang of tide gauges throughout parts of southeast Louisiana aren’t from a science fiction movie, though they may make residents feel like they’re caught in one.

Those sounds tell the stories of rising tides along the Gulf Coast and melting glaciers in the Arctic. And they tell how scientists believe those two events, taking place thousands of miles apart, are the reasons why the Gulf of Mexico is on pace to submerge most of southeast Louisiana by the end of the century — if nothing is done.

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The Louisiana Coast: Last Call
7:45 am
Wed May 15, 2013

The Louisiana Coast: Last Call — How We Got This Way: Canal Dredging

Man-made canals in the Barataria Basin wetlands.
Dr. Terry McTigue NOAA

These days when fishing guide Ryan Lambert motors away from the boat launch in Buras, he’s fishing in the what locals call “the land of used-to-bes.”

As in, that used to be Yellow Cotton Bay, or Drake Bay, or English Bay… and dozens more. It’s all one big open body of water now because the marshes, cypress swamps and ridges that separated these water bodies for most of his life are gone.

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The Louisiana Coast: Last Call
7:45 am
Tue May 14, 2013

The Louisiana Coast: Last Call — How We Got This Way: The Mississippi River

A plan of the city of New Orleans and the Mississippi delta, from 1759.
Thomas Jefferys Norman B. Leventhal Map Center at the Boston Public Library

Anyone flying into New Orleans on a clear day now looks down on a panorama of delicate marsh floating like green lace on the brown waters of the Mississippi delta. Those wetlands seem endless — stretching to the horizons.

But scientists tell us we’re really looking at the skeletal remains of a vast wetland ecosystem that presented huge challenges to European explorers back in the 16th century.

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The Louisiana Coast: Last Call
8:08 am
Mon May 13, 2013

The Louisiana Coast: Last Call — The Shape We're In Now

If you enter New Orleans in a Google search you’ll get words and images that echo the city’s unofficial motto: laissez les bon temps rouler, let the good times roll.

Americans love to visit this place because, as noted TV producer David Simon has said, New Orleanians will always find a way to celebrate, even when they get bad news.

But there’s some bad news coming to bayou country that no one will be dancing to.

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The Louisiana Coast: Last Call
1:19 pm
Thu May 9, 2013

WWNO To Examine Coastal Land Loss In New Series

Rising sea levels threaten communities on every American coastline, but none more so than Louisiana’s Gulf Coast, where every hour a football field’s worth of marsh disappears.

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