There was also Lake Agassiz[1] in central North America. An ice sheet collapse in the northeast may have caused a sudden drainage of the lake leading to an esti

There was also Lake Agassiz[1] in central North America. An ice sheet collapse in the northeast may have caused a sudden drainage of the lake leading to an estimated 0.8-2.8 meter rise in ocean levels worldwide. It's also believed this dramatic outpouring of freshwater altered the Atlantic ocean currents and caused a climate cooling event about 8,200 years ago[2]. [1]: https://en.wikipedia.org/wiki/Lake_Agassiz https://en.wikipedia.org/wiki/Lake_Agassiz [2]: https://en.wikipedia.org/wiki/8.2-kiloyear_event https://en.wikipedia.org/wiki/8.2-kiloyear_event