Research shows that we won't be able to rebuild the coast the same way it was created, with sediment flowing down the river.
Concern that nitrogen-fed vegetation has degraded Massachusetts wetlands is no reason to stop freshwater diversions here, the authors argue.
On the panel: John Barry, David Muth, Anne Rolfes, Kerry St. Pé and Aaron Viles.
Time-lapse images illustrate what we knew was happening: Over 30 years, islands and beaches have moved north, channels have widened, and marshes have turned to open water without a blade of brass for miles. But they also show portions of the coast growing, reinvigorated by restoration projects.
Is it too late to save southeastern Louisiana from the encroaching Gulf? Pose your questions and opinions.
Though the river is crucial to the economic and environmental well-being of 31 states, there's no plan to manage competing uses of the river water. Shipping companies, municipal water supplies, industrial plants and coastal restoration projects all need water. How will we decide who gets what?
Less than half of the water, and just 19 percent of the sediments, carried in the Mississippi River past the Atchafalaya make it to the Gulf. The finding casts new light on the potential of diversions to create land in adjacent basins — a key strategy in the state's $50 billion plan to save southeast Louisiana from washing away.
Researcher says he was surprised at how many people said they would help and how much they would commit.
The rallying cry for coastal restoration has been, “Put the river back into the marsh.” But a new study shows that fertilizer found in the river could weaken the marsh plants and soil. More troubling is another study that concludes we don’t really know whether these diversions are building land.
Alternatives to plugging the crevasse include conduits beneath the levee or a bridge over the gap. These moves would buy time while scientists determine the pros and cons of this "free" diversion project and its potential impact on other projects planned as part of the struggle to rebuild a vanishing coast.