SEA WALLS CAUSE LOSS OF BEACH IN PACIFICA
We've already seen it at Rockaway Beach, where 56 years ago the beach was "armored," that is, rocks were put in to hold back the sea. They are at least temporarily holding back the sea, but there is no beach anymore. And we're going to see it again at Sharp Park, Linda Mar, and Esplanade: Every beach that is "armored" will lose near-beach habitat, so that in 10 to 20 years the beach will erode completely.Watch the video [2 minutes]:
Discussion of this well-understood phenomenon in Terrain Magazine:
Sea levels are rising all over the world. On the California coast, it is still subtle but insistent. Because of global warming, sea-level rise will accelerate. Instead of trying to hold back the sea (an impossibility), we should plan for habitat to "migrate," and work around it. The general public will not approve using federal tax monies to keep out the ocean. To answer Shakespeare, we may not really oppose a sea of troubles. We need to work with nature, for we have no equal force to oppose it. Nor do we wish to lose wildlife habitat, which we surely will if we mistakenly armor our beaches.
DOLORES DE CABEZA