Merry Christmas everyone. Not sure, whether this tidbit has come up elsewhere already. A team of the Antarctic Heritage Trust has found 22 exposed, but undeveloped, negatives from Scott's expedition to the South Pole. http://www.imaging-resource.com/news/2013/12/27/on-ice-100-year-old-negative-discovered-in-antarctic-ice A gallery: http://www.nzaht.org/AHT/antarctic-photos/

I suspect that David Rose is relying on numbers by Steven Goddard. SG has been touting these huge increases repeatedly on his blog. And here is how he comes up with these numbers: http://stevengoddard.wordpress.com/2013/08/14/55-increase-in-arctic-ice-since-this-date-last-year/ To quote (see the exchange in the comments): I’m using their maps and comparing with a higher concentration threshold than their 15% calculations. Goddard is pixelcounting, cutting off at an arbitrary, undisclosed threshold of sea ice concentration. Apart from the arbitrary threshold, I'm not even sure the pixels correspond to equal areas across the map.

Perhaps someone has a good tip or tutorial. Hi Neven, the combo VirtualDub and AviSynth will do the trick. I've written a short quick-start guide for you. http://bluegrue.wordpress.com/2010/06/26/creating-a-video-from-stills-using-virtualdub-and-avisynth/ Have fun. :)