The Gold Coast has a surprising problem – a limited supply of sand. Ongoing beach erosion and climate change are expected to create even greater challenges for the city.
Modelling published by Griffith University last December suggested that the city's two bypassing plants "would receive [and therefore pump] less sand" due to the changing coastal environment, meaning that sand erosion associated with extreme events could potentially increase.
"It can be hard for people to grasp the idea that in a hundred years' time, if the beach is left to its own devices and there was no infrastructure or seawalls or properties behind the beach, it might actually be sitting 100 metres landwards of where it is today," Dr Power said."We need to look at minimising how much additional exposure we add to our coastal zone by minimising how much infrastructure and property we build in regions.
"There are so many different factors from local environmental factors, to budget, to risk appetite that'll play into what is going to be the best solution for an individual community," she said.
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