[freebeard]

A conditioned attic is inferior to an hemisphere with an oculus.


http://jonmacken.com/images/interior%20[skylight].JPG

Going by past ice ages and interglacials (warm periods between ice ages), we're nearing the temperature peak of the current interglacial period.
But we're not quite there yet.

That's like driving with you eyes fixed on the rear-view mirror. Meanwhile the Beaufort Gyre spins up North.

Housed in the western part of the Arctic Ocean is the Beaufort Gyre, whose growing reservoir of freshwater is shrouded in mystery. In recent years, this increasing freshwater content (FWC) has been the focal point of many studies, particularly those concerning coupled ocean-atmosphere dynamics. The majority of the Arctic’s freshwater content resides in the Beaufort Gyre. ... If, as is speculated, as the Arctic Ocean becomes a heat collector resulting in a low pressure, counter clockwise rotating system, the Beaufort Gyre can be expected to follow suit and send the fresher water outward to be captured by the transpolar current. This could well bring up the saltier, slightly warmer Atlantic water which lies under the floating, fresher Arctic water.
[snip]
The seasonal cycle of freshwater content does not only concern mechanical (Ekman pumping) processes, but thermal (ice formation) processes as well. The Beaufort Gyre contains a mean volume of 800 km3 of frozen freshwater, or sea ice, based on a mean ice thickness of 2 meters. ... The maximum in freshwater content released into the ocean waters coincides with a maximum in wind stress curl (i.e., a minimum in Ekman pumping), allowing for a high volume of freshwater to seep into the Arctic Ocean circulation. This rapid influx of freshwater into the Arctic circulation forces a large volume of freshwater to outflow into the North Atlantic basin, affecting the Atlantic Meridional Overturning Circulation.[6]