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composed of sand, coastal erosion creates little problem for the beach because it uses this sand to Chapter 9 Beach Erosion and Loss 3 sustain the environment. After all, sand is the lifeblood of beaches. However, migrating upward and landward through space and time does create a huge problem for buildings and roads built too close to the shoreline. And therein lies the rub â protecting the land with a seawall will lead to beach loss.
In many of these cases, individual beaches may be losing only a few inches per year, but in some cases the problem is much worse. The outer coast of Louisiana, which Leatherman refers to as âthe erosion âhot spotâ of the U.S.,â is losing some 50 feet of beach every year. Of particular concern is the effect climate change, which not only causes sea levels to rise but also increases the severity and possibly the frequency of harsh storms, has on beach erosion.