What will California’s coast look like in 100 years?
News Article by Elizabeth Hlavinka | Alta
Eighteen thousand years ago, give or take, the continental shelf 30 miles off the coast of San Francisco was exposed as a wide, flat coastal plain with an extensive system of dunes and river valleys connecting the Farallon Islands to the continental United States, which didn’t go by that name. Farther north, salt waters from the Pacific Ocean stretched all the way inland to present-day Sacramento.
Rising sea levels have continued to erode the shoreline ever since, as human beings established a society they would eventually call California. Some of our biggest cities were built in this 10 miles of dynamic coastline.
“We often think of the California coast as this high-relief terrain with active tectonics, which it is, but we’ve put millions of people in the lowest parts of the entire state, like the San Diego Bay, the San Francisco Bay, and the Los Angeles Basin,” says Patrick Barnard, the research director of the climate impacts and coastal processes team at USGS Pacific Coastal and Marine Science Center in Santa Cruz…