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Post by striker16 on Feb 23, 2012 20:12:26 GMT 1
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Post by StuartG on Feb 23, 2012 21:09:56 GMT 1
Last Revised: 06/01/05
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Post by rsmith7 on Feb 24, 2012 1:47:59 GMT 1
How about pretty photoshopped pictures for every year for the previous 1000 years strikey? You might get a surprise...
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Post by striker16 on Feb 24, 2012 9:27:09 GMT 1
How about pretty photoshopped pictures for every year for the previous 1000 years strikey? You might get a surprise... "Because Arctic sea ice is influenced by both air and water temperatures, the study authors use a combination of Arctic ice core, tree-ring and lake sediments to reconstruct Arctic conditions over the last 2,000 years. As is often the case with these proxy reconstructions, the authors found the error bars in the reconstruction (the uncertainty) increased further back in time, due to a decreasing number of proxy records, and was not useful past 1,450 years ago." skepticalscience.com/Arctic-sea-ice-hockey-stick-melt-unprecedented-in-last-1450-years.html
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Post by rsmith7 on Feb 24, 2012 10:42:46 GMT 1
Ahhh, skeptical science - an authoritative source - never known to pedal propaganda or "manipulate" data.....
Splicing observational data onto "proxy" (tree ring!!!!) data is a bit silly. You are silly.
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Post by striker16 on Feb 24, 2012 10:48:43 GMT 1
Ahhh, skeptical science - an authoritative source - never known to pedal propaganda or "manipulate" data..... When are you actually going to discuss science? Never?
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Post by rsmith7 on Feb 24, 2012 10:50:15 GMT 1
Ahhh, skeptical science - an authoritative source - never known to pedal propaganda or "manipulate" data..... When are you actually going to discuss science? Never? See modification above dim wit.
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Post by striker16 on Feb 24, 2012 15:13:04 GMT 1
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Post by StuartG on Feb 24, 2012 17:45:34 GMT 1
Last Revised: 02/22/09
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Post by rsmith7 on Feb 24, 2012 18:16:57 GMT 1
Splicing different data sources again strikey. Sorry, can't do that.
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Post by fascinating on Feb 24, 2012 18:56:13 GMT 1
Thanks for that Striker, that is interesting, because to my mind the sea-level is the most important statistic in determining whether the world is warming. The sea is where the great majority of the heat on the Earth('s surface) is stored, and the best way to determine how much heat is stored there is the sea-level, which rises mostly because of thermal expansion, plus glacier melt. The observed sea-level rise does indicate warming.
On the other hand the rise is miniscule, when you consider that the average sea depth is about 1000 meters, an increase of 3mm doesn't amount to much.
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Post by rsmith7 on Feb 24, 2012 19:09:30 GMT 1
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Post by nickrr on Feb 24, 2012 21:29:45 GMT 1
Yeah, like we've never seen the "no temperature rise since 1998" rubbish on this board. Funny how these comparisons are never made to 1997 or 1999.
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Post by rsmith7 on Feb 24, 2012 21:35:58 GMT 1
Yeah, like we've never seen the "no temperature rise since 1998" rubbish on this board. Funny how these comparisons are never made to 1997 or 1999. It's perfectly reasonable to say there has been no warming since 1997. A huge difference from saying "unprecedented warming since 1850" then back-tracking on a biblical scale to "probable man made warming in the latter half of the 20th century" Because that's the change in official IPCC position between AR3 and present. It's beyond parody.
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Post by mak2 on Feb 24, 2012 21:39:02 GMT 1
Thanks for that Striker, that is interesting, because to my mind the sea-level is the most important statistic in determining whether the world is warming. Unfortunately, it is not as simple as that. The water in the ocean is not like the liquid in a thermometer because it is not all at the same temperature and because the expansion of water is not uniform. It is quite possible for sea level to rise due to changes in the distribution of temperature and salinity without any extra heat or water being added. Another complicating factor is movement of the tectonic plates, the continents and the sea floor.
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