Sub-tropical Arctic - global warming?

[Andre]

I'm not surprised,

Space daily (http://www.spacedaily.com/news/arctic-04h.html)

Subtropical Arctic
Stockholm, Sweden (SPX) Sep 07, 2004

The North Pole, synonymous with all things very cold, once had a subtropical climate according to scientists now returning from the Arctic

The algae fossils reveal that the Arctic ocean was once much warmer-around 20°C (68F), similar to the waters around New York in August (NOOA) compared with today's freezing temperatures that average -1.5°C.
(...)
we were also surprised to find fresh water conditions and periods of extreme warmth. This indicates environmental conditions were more variable than anticipated. We have now sediment records going back to 56 million

cont'd


I think we are heading for a rigourous paradigm shift.

[pebrew]

...one like plate techtonics.

[Andre]

Right or actually wrong. The current idea about plate tectonics seems not to fit here. Look at the position of the Arctic ocean in here (http://pubs.usgs.gov/publications/text/historical.html), always on top. Apparantly it may have not been there 55 million years ago, or the tropics were really boiling.

But were also surprised to find fresh water conditions. at a dept of 1300 meters suggest that vertical motions of tectonic plates may be equally important.