National Geographic published this spectacularly fraudulent hockey of sea level, along with this wildly false claim.
Local measurements of sea level with tide gauges became common after 1880; satellites began global measurements in 1992. They’ve shown a clear acceleration: At an eighth of an inch a year, sea level is rising twice as fast as it was a few decades ago.
NOAA says that sea level rise rates are one half of the fake National Geographic claims.
absolute global sea level rise is believed to be 1.7-1.8 millimeters/year
This hockey stick is exactly inverted from the real data. Sea level rise has slowed tremendously over the last seven thousand years.
And their claim of recent acceleration is wildly false. Many gauges show no sea level rise, or sea level falling. Few, if any show acceleration (upwards curvature) in recent decades. National Geographic is defrauding their readers with their flagrant lies.
Tide gauges that do show sea level rise, generally show that sea level rose faster in the past.
East coast tide gauges show that sea level rose much faster prior to 1950.