Arctic Melt Increases

Previous predictions need yet new update.
http://www.washingtonpost.com/../2007/09/06/AR2007090602499.html
The article is thought provoking and confirms the general assumption that feedback processes have not yet been included in many models.
(source RealClimate.org)
In this case, disappearing ice sheet would reduce reflection that would send heat back to space and in turn increase the amount of trapped heat. Would be interesting to see if this was factored in the assumptions.
Also, the IPCC May Report that was issued for policy makers around the world has admittedly not included the fact and consequences of faster meltdown.
The report also seems to confirm expert predictions often cited on this Change Climate Back blog that 30-40 year changes have already been locked in and are largely due to the amount of carbon dioxide already trapped.
Related post:
http://changeclimateback.blogspot.com/2007/05/cost-of-global-warming-fix-uses-old.html

Sea level could rise faster while Antarctic gains mass

Hot off the press are some interesting findings.

In brief:
If iceberg calving in the Antartic (huge chunks braking off the ice shelves) continue at current rate, glaciers could get involved. It appears that, if unencumbered, they slip faster into sea, then previously thought. This could far accelerate sea level rise beyond the currently projected 28-43 cm over the next 100 years.
However, overall, the Antarctic is not likely to loose ice mass. Instead it will gain from more intense precipitation in the form of snow fall. Also, widespread thawing of the Antarctic is not likely due to the extreme cold.
This current finding seems to support the idea that the Atlantic sea mass and currents are at greater risk of widespred change then the Pacific. For that reason too, when it comes to regulating oceanic changes, Earth agmentation should start at the Gulf. Check out this article on the subject.

http://www.sustdev.org/index.php?option=content&task=view&id=1708