Bigdog
Harris - make America a 3rd world shithole
This is not science. It is a graph of random numbers. It is not possible to measure the global sea level. There is no valid reference point. Tidal stations, such as you are trying to reference here, did not exist thousands of years ago.
I'm well aware that we are using "scientifically unrepeatable, best estimates", an "educated guess". I have high confidence that the sea level was 400 ft. lower in 18,000 BC relative to its level today.