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 Where Your Dreams Become Reality |
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You are reporting the following post to the moderators for review and possible removal from the forum Poster: asdeee Subject: RE: Greenland ice sheet melting faster than previously thought. PLEASE RECYCLE! Body:
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). Image: http://i44.tinypic.com/2qa2qh5.jpg 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. Hit the submit button below if you want us to review the post. If you feel this is urgent or want a reply, email us at letsrun@letsrun.com about the post and please include a link to the thread the post is on and what page number/post on that page it is
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