[kidd]

I cannot find my exact source, but the following well-sourced article:

http://www.agu.org/revgeophys/dougla01/node3.html

provides a good discussion of the difficulties in determining sea level, and that many more years of data collection are required to determine the rate of sea level change.

[gondramB]

Thank you. i'll take a look at that. I used the NASA, NOAA and Intergovernmental Panel on Climate Change web sites but this is way outside my field.. I only had threee courses total in atmospheric and oceanographic dynamics and its been 15 years so there is a lot I don't understand.