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Study Finds San Francisco Bay is Sinking Faster than Expected

A map of the San Francisco Bay Area showing areas at risk from sea-level rise in yellow. The red areas show where sea-level rise and subsidence will create areas of an increased risk of flooding. Both colors represent potential risk by 2100. Image courtesy of ASU/Manoochehr Shirzaei

Engineering News-Record

All  coastal cities in the U.S. face some potential threat from sea-level rise, but areas around San Francisco Bay may be more vulnerable than previously thought according to a recent study. Satellite-imaging shows the problem of rising sea levels is exacerbated in the Bay Area at sites where the soil is sinking at a rate of 10 mm or more per year. The subsidence problem is in addition to sea levels rising a mean global average of 3.1 mm per year.