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Visual Mnemonics (Read 593 times)
BatteriesNotIncluded
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Visual Mnemonics
Feb 18th, 2016 at 4:55pm
 
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Arctic sea ice in a death spiral?


Arctic sea ice grows and shrinks seasonally, with an annual minimum in September. In 1979, when satellites first measured it, September Arctic sea ice extent was roughly equivalent to the area of Australia. Since then it has declined by about a third, equivalent to losing Western Australia – outstripping all projections.

source: http://www.skepticalscience.com/melting-ice-global-warming.htm
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lee
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Re: Visual Mnemonics
Reply #1 - Feb 18th, 2016 at 5:28pm
 
BatteriesNotIncluded wrote on Feb 18th, 2016 at 4:55pm:
Arctic sea ice in a death spiral?


Arctic sea ice grows and shrinks seasonally, with an annual minimum in September. In 1979, when satellites first measured it, September Arctic sea ice extent was roughly equivalent to the area of Australia. Since then it has declined by about a third, equivalent to losing Western Australia – outstripping all projections.

source: http://www.skepticalscience.com/melting-ice-global-warming.htm



Funny John Cook, we've seen what he can do with statistics. it doesn't make him right.

Actually, satellites started measuring Arctic sea ice much earlier.

'Especially importantly, satellite observations have been used to map sea-ice extent
routinely since the early 1970s.'

www.ipcc.ch/ipccreports/far/wg_I/ipcc_far_wg_I_full_report.pdf

Now why does John Cook say 1979?

Copied because I couldn't bother redoing it longhand.
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BatteriesNotIncluded
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Re: Visual Mnemonics
Reply #2 - Apr 7th, 2016 at 5:58pm
 
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Figure 8. These graphs show Arctic sea ice age from March 4 to 10, 2016. The top graph shows ice age distribution for that week alone and the bottom graph shows ice age distribution for that week from 1985 to 2016.

Credit: NSIDC courtesy University of Colorado Boulder, M. Tschudi, C. Fowler, J. Maslanik, R. Stewart, W. Meier.




https://nsidc.org/arcticseaicenews/
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