That's the equivalent of a missing area of sea ice almost four times the size of Colorado, and puts this year right in line with a trend of ever decreasing
sea ice in the region as the climate warms.
Something that goes along with this change in atmospheric circulation is
reduced sea ice in the region (while sea ice in Antarctica has been increasing on average, there have been significant declines off the West Antarctic coast for the last 25 years, and probably longer).
In early September, the Guardian in London reported, «The Arctic ice cap has collapsed at an unprecedented rate this summer, and levels of
sea ice in the region now stand at a record low.»
The complete absence of
multiyear sea ice in the region, confirmed by thickness surveys and local observations, is a first for the region in the past several decades.
On November 30th, diplomats from the Department of State concluded 10 years of negotiations by finalizing a multilateral agreement to protect the central Arctic Ocean from overfishing, as
sea ice in the region dwindles.
«We used actual satellite measurements of both albedo and
sea ice in the region to verify this and to quantify how much extra heat the region has absorbed due to the ice loss.
What causes
the sea ice in this region to melt?