Climate change - sea level rise
Average global sea level has risen from mid 18th century through to present, with noticeable recent acceleration in rate of increase. Reportedly the two main mechanisms contributing to observed sea level rise are the thermal expansion of sea water as it warms, plus melting of land based ice whether ice sheet, permafrost or glaciers. The melting of floating ice does not contribute. It is important to note that due to varying tides and currents, sea levels do not rise evenly world-wide and some locations may well experience far greater rises. Not included in the model is the increasing possibility of a short term catastrophic jump in sea level from such events as rapid glacial loss from Greenland.
Sep 2023: Model updated to include 2022 data.
Sep 2023: Model updated to include 2022 data.