Is a concrete wall the best defense against coastal erosion? Probably not.
Is a concrete wall the best defense against coastal erosion? Probably not.
![](https://i1.wp.com/helios-i.mashable.com/imagery/videos/05vOf01gG7APJvRyQ768lVC/hero-image.png?w=900&ssl=1)
![](https://i1.wp.com/helios-i.mashable.com/imagery/videos/05vOf01gG7APJvRyQ768lVC/hero-image.png?w=900&ssl=1)
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Beachfront residents in Sydney, Australia are paying massive amounts of money to help construct a 7-meter high concrete wall that’s meant to act as the last point of defense for their homes.
The only problem? It might be doing more harm than good.