Im saying that 20 of those 30 years didnt see any warming.
If you want to claim this (nonsense), you should at least back it up with some links, so we can add the involved web sites to our kill files.
you would ignore data that contradicts your beliefs???
It would be helpful here if everybody pointed to a common data set, so we all knew that we were talking about the same thing.
Here's the NASA-NOAA, showing NOAA (in blue) and NASA (in red) 's values for average temperature since 1880: http://www.wired.com/wp-conten...
You can see the "hiatus" in the far right of the graph: the curve to right of about 2000. If you blow up just this portion of the graph, and leave out everything to the right of 1998, you can make a graph which makes it appear that global warming has stopped.
So: the deniers look at this graph and say "warming stopped in 2002". People skeptical of the deniers say "There's a clear upward trend with random fluctuations; there's nothing statistically significant in the data after 2002; it's well within the range of variation in the record."
Or, you can say "There's a clear long-term rise. However, superimposed on that long-term trend are shorter term variations; these shorter term variations are also data, and the study of the causes of these variations may be a valuable subject for research."