Show us the graph before 1998! A bit selective. Otherwise I will.
What is it about global warming skeptics that they cannot see the data when it is put in front of them!
Just like those mental giants of science that pass for commentators at the Australian newspaper you are totally wrong! Or is that commentators that pass for mental giants at science!
Here is a start
http://www.cmar.csiro.au/e-print/ope...ctions2001.pdf
Bert