Air Force Met wrote:xironman wrote:It is a snide, flippant, one-sided article that is completely wrong. The arctic is down over a million square kilometers of ice coverage over average. Last year was an amazing record, which may not be beaten this year. But that has nothing to do with the trend.
I see this all the time. Over what average? The last 30 years? You (generic you) gonna base a whole movement on 30 years of data...that if you included the south pole TOO it would be a wash? What about last century? There is ice in placed today that was totally void 100 years ago.
Who's to say that your 30 year average isn't the top end of the long term average? What about 1000 years ago compared to today? No comparison. What about Roman Era Max?
Then you can compare to the Maunder minimum and the Sporer minimum.
Averages are just the middle between two extremes.
Well sure we can argue about what's a reasonable "average" but it seems to me absolutely any average of all polar ice, even something as short as the 30 year average, is more meaningful than "more ice than normal in the Arctic waters north of the Svalbard archipelago" for some unspecified period during this summer season - which is what the posted article attempts to offer as evidence that there is no trend of loss of polar ice.
And I don't know how you conclude that it would be a wash if the south pole is included - there are significant uncertainties but as far as I'm aware the mass balance of continental ice in East Antarctica is pretty much flat - but with significant loss in West Antarctica and indications of accelerating ice flow in a number of areas. Most probably Antarctica isn't losing much ice mass (and that's no surprise to climate modelers) but it almost certainly is losing some.