In Long Beach, CA, recent proposals have suggested removing the breakwall that has protected the Los Angeles/Long Beach harbor for nearly half a century. This has been suggested as a way of returning the Long Beach coastline to its natural pre-breakwall state. Can you suggest any reasons why this may not be such a good idea?
What will be an ideal response?
Since the breakwall surrounds a heavily populated and industrialized part of Southern California, it is likely that many pollutants have entered the harbor over the many years of its operation. It is also likely that many of these pollutants have settled to the bottom along with very fine silt as a result of the low wave and current activity in the harbor. Indiscriminately tearing down the breakwall could result in the resuspension of fine particles and pollutants into the water column with detrimental effects on pelagic and benthic organisms. Some of these effects could also be felt in surrounding areas depending on the movement of currents.
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What will be an ideal response?