Climate Change skeptics? [ot]

The main system that helps determine the weather over Northern Europe and North America may be changing, research suggests.

The study shows that the so-called jet stream has increasingly taken a longer, meandering path.

This has resulted in weather remaining the same for more prolonged periods.

The work was presented at the annual meeting of the American Association for the Advancement of Science (AAAS) in Chicago.

The observation could be as a result of the recent warming of the Arctic. Temperatures there have been rising two to three times faster than the rest of the globe.
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The jet stream, as its name suggests, is a high-speed air current in the atmosphere that brings with it the weather.

It is fuelled partly by the temperature differential between the Arctic and the mid-latitudes.

If the differential is large then the jet stream speeds up, and like a river flowing down a steep hill, it ploughs through any obstacles - such as areas of high pressure that might be in its way.

If the temperature differential reduces because of a warming Arctic then the jet stream weakens and, again, like a river on a flat bed, it will meander every time it comes across an obstacle.

This results in weather patterns tending to becoming stuck over areas for weeks on end. It also drives cold weather further south and warm weather further north. Examples of the latter are Alaska and parts of Scandinavia, which have had exceptionally warm conditions this winter.

Well, after adjustment they all show little increase, actually a flat trend over the last 15 years.

Additionally they show the Earth has warmed little since the lower than average temps of the LIA.

This image is a comparison of 10 different published reconstructions of mean temperature changes during the last 2000 years. More recent reconstructions are plotted towards the front and in redder colors, older reconstructions appear towards the back and in bluer colors. An instrumental history of temperature is also shown in black. The medieval warm period and little ice age are labeled at roughly the times when they are historically believed to occur, though it is still disputed whether these were truly global or only regional events. The single, unsmoothed annual value for 2004 is also shown for comparison. (Image:Instrumental Temperature Record.png shows how 2004 relates to other recent years).

I don't think anyone refutes the fact that global temperatures warmed to modern era highs in the 90s. It's what's happened in this century that's causing a lot of skepticism.

The problem I have with a lot of the experts is they won't even acknowledge the "hiatus" or they've come up with new rationalizations to discount it.

Back in the 90s, were any of the experts predicting a pause?

Thanks for making my point.

Then you claimed I "haven't tried to read or understand any of these experts". Nothing like a good ad hom.

Again EDH, keep posting all them "Prediction" papers that your DEMOCRATIC GOVERNMENT, STATE and FEDERAL, of late, have totally IGNORED.


WHY?

Fact is, they, the current DEMO government, IGNORED all them supposed CC Models. They did not BELIEVE them. More like just plain incompetent and complete bullshet.

Fact is, they, the current DEMO government, IGNORED all them supposed CC Models. They did not BELIEVE them. More like just plain incompetent and complete bullshet.