There is no sugar coating the fact that the Arctic sea ice is well below normal.
The AGW agenda is jumping all over this metric as evidence that catastrophic global warming is upon us. After all, they really can no longer use earth's actual air and ocean temperatures as proof since they have leveled off, and are now cooling. The disconnect with C02, still on the rise, cannot be denied.
As you can see, I admit Arctic sea ice is on the decline, but the question is, why?
The answer can be seen through natural causes. A look at the ocean temperatures globally over the past 15 years, or since the global temperatures reached a peak in the major el Nino of 1997-1998 supplies the answer. Notice on Sept 1, 1997, most of the northern hemisphere ocean was quite warm, the southern hemisphere cooler. This is an example of the warm phases of the Pacific Decadol Oscillation and the Atlantic Multidecadol Oscillation both occurring at once. A tremendous input of heat (oceans have 1000 times the heat capacity of air) into the atmosphere has to be occurring, causing a rise in the global temperature which was well documented through the 1990s.
But one also notices a counter cooling in much of the southern hemisphere oceans.
Since dry air over land warms more than air over the ocean, the response of the warming ocean when that air came over the drier land was more of a rise in temperatures over the continents than fall over the southern hemisphere oceans . So it appears that the earth is warming. After all if you have many more samples of warm than cold, your answer has to come up warmer, right? However, is there a change in the total energy budget of the earth? If there is not then what goes up, must come down. The earths temperature rose in response to the warming Pacific, which started the northern ice cap melting. The Atlantic is in its warm stage now, so the ice cap is being attacked from the ocean also. Once the Atlantic comes out of its warm phase in 10 to 15 years, the ice cap will rebound.
Below are charts in 5 year increments that show a reversal has occurred in the Pacific:
The current water temperature anomaly shows very warm water in the north Atlantic, a product of the warm cycle of the Atlantic we are in like the 1950s, and this continues to attack the ice cap.
But is the lack of ice at times that unusual? Apparently not as photographic evidence shows. Here is a picture of a submarine surfacing at the North Pole in August of 1959 -- another period of known warmth similar to the cycle we are in now.
More startling to me was this picture that shows large amounts of open water at the North Pole in May of 1987 with three subs surfacing.
Wind and storminess can also have an effect on the Arctic ice, which is what recently happened. A fierce storm broke up a lot of the ice and shoved much of it southeast into the center of the ice cap. But when viewing this 30 day loop of the arctic, notice how fast the rebound from the low point has been in the past 30 days, with a shrinkage because of the storm, then the ice rapidly rebounding (make sure to put this into a loop).
The recent pronouncement that Greenland had the most rapid melt period on record is another example of neglecting the actual facts to come up with an objective idea. If you would like to read more on that matter, here is a nice link.
The reason we are seeing all this is because we have seen a distortion of the global temperature pattern the past 30 years brought about by the warm phase of the Pacific, which started the warming of the northern hemisphere, followed by the Atlantic warming. The response was greater over land where air is dry and can be easily warmed! How can we test this theory, besides waiting for it to simply recover once the Atlantic turns colder? Well we have a hint, and it's in the southern hemisphere. After all, we have to think globally, right? That is what we hear: GLOBAL warming. So we should also have the southern hemisphere shrinking if they are correct and my hypothesis is wrong.
Let's evaluate, shall we?