That raises another question of interest to me, and I'll admit to some laziness here.
Given that water freezes at 0 degrees Celsius (give or take a degree or so based on things like motion and salinity), exactly how cold do the GCC folks need it to be at the poles before they stop freaking out? Another way to put it; how big of an area needs to remain below freezing before they stop freaking out?
In areas in Canada, etc. where they were going berserk over the lack of sea ice, what was the ambient air temperature? Did an area that was used to temps in the -10's Celsius suddenly enjoy balmy temps in the positive numbers? That's not a small change, and the sudden nature of such a development couldn't possibly be attributable to CO2 or water vapor.
Maybe the oceans serve as giant batteries, absorbing energy from the sun, and releasing it in the form of heat. If the earth were largely covered in water, it would mean our "global climate" was subject to the whims of the sun. Hmmmm....I wonder if the sun's energy output is a constant.
Alright, enough with the obtusity.
OCEAN AND CLIMATE -- THE ODD COUPLE - Role of the Ocean in Weather - Students - OceanWorld
The Sun's output is not entirely constant. Nor is the amount of sunspot activity. There was a period of very low sunspot activity in the latter half of the 17th century called the Maunder Minimum. It coincides with an abnormally cold period in northern Europe sometimes known as the Little Ice Age. Since the formation of the solar system the Sun's output has increased by about 40%.
Makes you wonder if it was cold places other than Europe, except that the first thermometer that was worth a fuck was invented in - you'll never believe it - 1714, in - wait for it - Europe. Wow, ain't that a bitch. The Sun's output has been increasing steadily ever since we had a remotely accurate way to measure it.
It gets better - cloud cover, particulate, etc. help to reflect solar energy. "Clean burning" fuels give us all the CO2 & polution, and none of the particulate that helps cool the earth. We're double-whammied. To say nothing of the fact that water vapor is the BIGGEST contributor to the greenhouse effect, and the big push in automobiles is cars that exhaust only - take a guess - water vapor
We're doing a fine, fine job of taking miniscule bits of information, assuming we know everything there is to know, losing our ever loving minds over that fact, then taking steps that you couldn't purposely design to carry us further down the path to damnation if you tried.
But other than that, I have no strong feelings on the subject.