In the illustration linked below, notice that the hottest spot on the planet last September (relative to average temp.) corresponded to an area that is roughly downwind of HAARP (located about 7 miles NW of Gakona AK) - or to be more precise: an area downwind of the summer-months' angle of incidence of solar radiation passing through HAARP-created ionospheric disturbances...
Science News: Seeing Red
Likewise, in the GRID-Arendal maps linked below, there is a noticeable dent in the polar ice cap in an area roughly corresponding to the summer-months' angle of incidence of solar radiation passing though the HAARP-disturbed ionosphere and on to the Arctic Sea...
Satellite observations in Arctic sea ice, 1979 and 2003
Arctic sea ice minimum extent in September 1982 and 2008
This of course raises the question: if anthropogenic global warming is taking place, then is all of the emphasis on carbon emissions misplaced? This may not be the only, or even the primary cause of global warming (which seems to be more acute in the higher latitudes). Rather, a significant factor may be found with HAARP, EISCAT and other ionospheric heaters poking holes in Earth's protective layer against solar radiation.
Some reference maps...
Ocean currents and sea ice extent
Arctic atmospheric circulation
Current ionospheric map