Comments on: Arctic Warming http://chrisvernon.co.uk/2009/12/arctic-warming/ Thu, 26 Jan 2012 17:29:57 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Biff Vernon http://chrisvernon.co.uk/2009/12/arctic-warming/comment-page-1/#comment-8 Biff Vernon Thu, 24 Dec 2009 07:53:57 +0000 http://chrisvernon.co.uk/?p=222#comment-8 Rex Dalton, in Nature News, 21st Dec 09, http://www.nature.com/news/2009/091221/full/news.2009.1157.html "The analysis, by atmospheric scientists at Stanford University in Palo Alto, California, also shows that in the Arctic, aircraft vapour trails produced 15–20% of warming." What d'you think? Rex Dalton, in Nature News, 21st Dec 09, http://www.nature.com/news/2009/091221/full/news.2009.1157.html
“The analysis, by atmospheric scientists at Stanford University in Palo Alto, California, also shows that in the Arctic, aircraft vapour trails produced 15–20% of warming.”

What d’you think?

]]> By: RalphW http://chrisvernon.co.uk/2009/12/arctic-warming/comment-page-1/#comment-7 RalphW Fri, 18 Dec 2009 14:33:34 +0000 http://chrisvernon.co.uk/?p=222#comment-7 Hi Chris, It is also recorded that the arctic sea ice has dramatically thinned in the same time period. The total volume of of sea ice is now something like half what it was 30 years ago. How much energy does this melting represent, relative to the extra solar energy absorbed due to the reduced albido? Once the summer sea ice falls to zero, all of the extra energy absorbed will be used to raise surface temperatures. The buffer effect of the latent heat of the ice will be lost. More of this extra energy must inevitably be absorbed by the Greenland ice sheet and arctic permafrost, accelerating the rate of their melting. Hi Chris,

It is also recorded that the arctic sea ice has dramatically thinned in the same time period. The total volume of of sea ice is now something like half what it was 30 years ago. How much energy does this melting represent, relative to the extra solar energy absorbed due to the reduced albido? Once the summer sea ice falls to zero, all of the extra energy absorbed will be used to raise surface temperatures. The buffer effect of the latent heat of the ice will be lost.
More of this extra energy must inevitably be absorbed by the Greenland ice sheet and arctic permafrost, accelerating the rate of their melting.

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