It is variability in the Arctic Ocean's currents that is the cause of the most of the climate's natural variability. Extent of the cold Arctic waters outflow in turn regulates the inflow of Atlantic water warming the Arctic Ocean and consequently regulating the Arctic temperature, which is the main contributor to warming and the initiator of cooling. Crucial to this warm-to-cold oceanographic choreography is the Denmark Strait. The Denmark Strait is a bottleneck in a 'superhighway' in the oceans' global circulation . The Arctic overflow water (about 3 Sv), the largest of the deep, overflow plumes that feed the lower limb of the conveyor belt and return the dense water south through gaps in the Greenland-Scotland Ridge.(WHOI)

The North Icelandic Jet Current - NIJ.

The NIJ is a cold current that runs through the Denmark Strait, between Greenland and Iceland at a depth of about 600 meters at sea bottom, across the Icelandic plateau. The NIJ contributes to a key component of the Atlantic Meridional Overturning Circulation- AMOC. At its source the ocean heat loss to atmosphere is generator of the Icelandic Low atmospheric pressure system, determining latitude of the summer's polar jet stream over the North Atlantic.

North Atlantic Tectonics

Correlation of the geological records in the area to the past solar activity is for the time being an impenetrable geophysical quandary, but it does explain why many credit the sun for the climate's natural variability.

Historic correlation between geological records, the CET and the trailing North Atlantic SST

More Recent Records


Change in the local magnetic field (proxy to the geological movements)
correlates to the global temperature reconstruction.



More charts can be found here: Graphs and Formulae
© m.a. vukcevic