Daniel A. Gross does some heavy lifting on behalf of all of us, especially those in coastal areas. This technology is foreign to most of us, except the Dutch. We can hope all we want, but now might be a good time to start thinking more seriously about whether this technology is fit for the task:

Can Seawalls Save Us?

Huge coastal barriers could protect the world’s cities. But they’ll have unexpected costs.

Pacifica, California, just south of San Francisco, is the kind of beachfront community that longtime residents compare to Heaven. One of its streets is called Paradise Drive; local fishermen brag that Pacifica Pier is among the state’s best places to catch salmon, striped bass, and crab. Every few years, a superbloom blankets the coast with golden wildflowers. When the sun cuts through the region’s famous fog, the sky sometimes glows, as in a Turner painting.

Some of Pacifica’s most dramatic views could be found on Esplanade Drive, where mid-century developers built bungalows on top of a cliff. For almost fifty years, residents gazed out from their back yards to see whales splashing in the Pacific. Then, in 1998, a group of homeowners gathered to say goodbye. “I cannot express how spectacular it has been living here,” one of them, Joe Parker, said at the time. “I’ve seen dolphins out there. I recognize all the seabirds.” Beverly Axelrod, who had spent fourteen years on Esplanade Drive, recalled how her ocean view had “healed everything.” Continue reading →