Where Your Dreams Become Reality
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Subject: RE: Greenland ice sheet melting faster than previously thought. PLEASE RECYCLE!
I prefer not to play that game, snipping out points you don't like. I think the data stand on their own. The main point I take from looking at data like that is that the variability is significant, and has a controlling influence on the interpretation of trends, imagined or real.
In case anyone doesn't understand why I am inclined to dismiss the CO2 plot inferred from the ice core, here is the same 100+ years of average temperature data for the west coast town with also 5 year, 10 year and 20 year moving averages. You can see most of the fluctuation is removed from the data, even at the first pass of filtering (5 year average).
Now imagine 15 of these graphs, end to end, and average all of that data into a single point. That's what has effectively been plotted in the big scary blue graph.
When we try to compare a single point containing 1500 years of records averaged into a single point against one year, or a series of 10 or 100 years, we are not comparing apples with apples.
Note, this doesn't mean I'm fixed in my position (of ambivalence), but I continue to find that when I probe with any kind of force, the arguments are a little soft. Perhaps I'm generalizing too broadly, so nobody take any offence. I'm still climate-illiterate so my (unformed) opinions meand nothing and should offend noone.[/quote]
It's not a game, it's just doing a sensitivity analysis of sorts.
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