this post was submitted on 11 Feb 2024
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Can the ‘sand motor’ save West Africa’s eroding coast? (grist.org)
submitted 9 months ago by Ninjazzon@infosec.pub to c/climate
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When governments find themselves fighting the threat of coastal erosion, their default response tends to be pretty simple: If sand is disappearing from a beach, they pump in more sand to replace it. This strategy, known as “beach nourishment,” has become a cornerstone of coastal defenses around the world, complementing hard structures like sea walls. North Carolina, for instance, has dumped more than 100 million tons of sand onto its beaches over the past 30 years, at a cost of more than $1 billion.

The problem with beach nourishment is obvious. If you dump sand on an eroding beach, it’s only a matter of time before that new sand erodes. Then you have to do it all over again.

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[–] LesserAbe@lemmy.world 2 points 9 months ago

After reading the article sounds like the answer is no. Sounds like the real issue is that people want a beach, but having a beach just means adding sand and choosing either faster or slower erosion.

Seems like they should look at a break wall or plant life or things that are more resilient.