advantage and disadvantages of barrier islands.
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Barrier islands are important and dynamic geographic features that are essential to both humans and natural ecosystems. Recently, they have been struggling to remain intact. In the past, barrier islands have stayed above water by having their sands shifted towards the mainland by ocean waves, where the elevation is higher. When people build on these islands, it blocks the natural flow of sand that keeps the island alive. On top of this, climate change has increased the rate of sea level rise, making it harder for the islands to compensate with their shifting sands, putting barrier islands at even greater risk. So, the barrier islands are in trouble, but why are they so important?
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