There is more sea ice around Antarctica than in the Arctic, and it is all at lower latitudes than in the Arctic – so it reflects a lot more sunlight back into space. The whole point of alarmists being hysterical about September Arctic ice loss is the albedo feedback (as if there was actually any sunshine at the North Pole in September) – but the negative feedback around Antarctica is probably larger than any Arctic effects. Missing Arctic ice in the autumn also allows more LW radiative loss into space.
Additionally, NSIDC reports ice loss or gain as a percentage rather than absolute numbers – which conveniently hides the incline in Antarctica.







