Sea levels were 32m higher than today 13,800 years ago – in southern Greenland (https://notrickszone.com/2020/10/08/scientists-assert-relative-sea-level… ) … an embarrassment of water. Sea levels rose at a very rapid rate of knots between 12,000 and 10,000 years ago. However, they peaked at Nanotalik on Greenland by 32m above modern sea levels between the end of the Late Glacial Maximum and the Younger Dryas episode. During LGM they were at a very low ebb but rose sharply during the Bolling-Alleroed interstadial. The remarkable point of interest to AGW sceptics appears to revolve around estimated co2 levels at the time – almost half of today, just 250ppm. Note … 'parts per million' as there is another attempt to raise the warming hype by alleging a huge rise in nitrogen [and naughty boy farmers are getting the blame] which is even more ludicrous as it is 'parts per billion'. These guys are getting desperate.
We may wonder what has happened with modern sea level rise – in millimetres rather than metres. Why has it stalled? When will we see the steep rise as projected in climate models? Even more dramatic is the rate of rise in sea level at the back end of the Pleistocene.