California and US tide charts rely on out-of-date sea level rise data | The tide charts used by sailors, city planners, surfers and coastal businesses around the country are based on sea levels from roughly the 1990s, but water levels have risen by about 3 inches in the Bay Area in the meantime.

California and US tide charts rely on out-of-date sea level rise data | The tide charts used by sailors, city planners, surfers and coastal businesses around the country are based on sea levels from roughly the 1990s, but water levels have risen by about 3 inches in the Bay Area in the meantime.

Source: silence7