Gulf Coast's Ecological Heritage at RiskThe Gulf Statesspacer
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Confront the Challenge
• Climate in the Gulf
• The Report
• For Teachers

Discover the Solutions
• Overview
• Slow the Change
• Speed our Response

Explore the Impacts
• Overview
• Water Resources
• Sea-Level Change
• Human Perspectives

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Louisiana
Louisiana state bird, the Brown Pelican 'Pelecanus occidentalis'
Introduction
Climate Projections
Wetlands
Fisheries
Coastal Development
Freshwater Resources
Agriculture & Forestry
Human Health
LA Resources & Links
Coastal Development and Infrastructure
As development and economic activity in coastal areas has increased, so too, has societal vulnerability to coastal hazards. Global climate change will likely exacerbate that vulnerability. The area south of New Orleans, which is highly developed for residential, industrial, and tourism uses, as well as the international seaports of New Orleans and Baton Rouge, which function as important transportation hubs, and other smaller docks are especially at risk. Much of the immediate coastal fringe of Louisiana is rural and not overly developed, but the low-lying areas face growing challenges from sea-level rise. Threats to coastal development and infrastructure due to global warming include the following:

  • New Orleans Inner HarborAccelerating sea-level rise will also increase storm surges, even if hurricanes and tropical storms do not become more intense. Thus, greater economic losses from storms, and higher repair and maintenance costs, such as the costs of maintaining port and industrial facilities or beach replenishment, must be expected in the future.

  • Accelerating sea-level rise will increase the rate of erosion—an already significant threat to homes, roads, and other infrastructure along the shorefront of the state's barrier islands, such as Grand Isle.

  • Chandeleur IslandsDuring major storms, storm surge heights of 3–6 feet could reach as far inland as the Westbank communities across the river from New Orleans if barrier islands and wetlands are lost as buffers. Existing storm protection measures could be rendered inadequate.

 

 



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Photo Credits:
Brown Pelican - South Florida Water Management District.
New Orleans Inner Harbor - U.S. Army Corps of Engineers, M. Maple
Chandeleur Islands - D. Reed
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