The occurrence of new records, new extremes, at BOTH poles has significance, particularly when overlain on the steady rise of global temperatures over the last century.
Hot poles: Antarctica, Arctic 70 and 50 degrees above normal
Parts of Antarctica Friday hit 70 degrees warmer than normal. At the same time parts of the Arctic were 50 degrees warmer than normal. Scientists are stunned.apnews.com
No worries. It's all good. My belief is that any conversation about earth's future climate should start with a conversation on what's is controlling earth's present climate. And that conversation has to begin with why the earth transitioned from a greenhouse planet to an icehouse planet. Understanding the conditions which led to Milankovich cycles triggering glacial cycles and understanding what drove climate fluctuations within glacial and interglacial cycles is relevant to today's conversation. The geologic record is littered with examples of warming trends following cooling trends within glacial cycles and cooling trends following warming trends within interglacial cycles. And not one of those instances was caused by atmospheric CO2 or orbital forcing. So it would be disingenuous to casually dismiss natural causes - such as solar output and albedo - as the reason for the recent warming trend. The planet is much much closer to extensive northern hemisphere glaciation than it is to a greenhouse planet.
Again... Milankovich cycles trigger glacial cycles because the conditions on earth - namely polar regions being isolated from warmer marine currents which determine the threshold for extensive glaciation at each pole and earth's present temperature. Within the cycles other factors - namely solar output and albedo - drive fluctuations within the cycles. Orbital forcing cannot be responsible for the up and down climate fluctuations within the cycles because those timescales are very short compared to the orbital forcing time scales.
news.climate.columbia.edu
climate.nasa.gov
The occurrence of new records, new extremes, at BOTH poles has significance, particularly when overlain on the steady rise of global temperatures over the last century.
Hot poles: Antarctica, Arctic 70 and 50 degrees above normal
Parts of Antarctica Friday hit 70 degrees warmer than normal. At the same time parts of the Arctic were 50 degrees warmer than normal. Scientists are stunned.
IPCC starts with "Wheeze awl gunny dyeeee!" from man madeup Global Climate Warming Change and works back from there.
Wait. Is it a "complex system" or are you able to isolate ALL variables except a demininus change in an atmospheric trace element as THE CAUSE of all manmadeup Global Climate Warming Change because the two are mutually exclusiveThere's a significant difference between EQUILIBRIUM and TRANSIENT. We are not yet at the equilibrium of the added CO2.
In chemistry if I add two reactants to a mixture they take a certain amount of time to react and then come to equilibrium. Same with added CO2.
RIght now on earth there are a variety of climates. Some hot, some cold, some wet, some dry. Climate change means that the overall average temperature of the globe can increase while locally climate can cool.
The example I gave of the shutdown of the Thermohaline Circulation in the North Atlantic is a great example. As the globe warms ice on Greenland starts to melt and pump a bunch of fresh water into the upper part of that circulation. The density differential vs salt water can cause the current to slow down or even stop. Right now the climate of England or other western European countries is warmer than it would normally be at that latitude. That's because the gulf stream pulls warmth up to higher latitudes and that keeps western Europe warmer than it would be without the circulation.
Does that start to make sense? It's a complex system with a lot of moving parts that interact.
You don't have to believe me, you can take the word of actual professional researchers at Columbia University:
Could Climate Change Shut Down the Gulf Stream?
In the 2004 disaster movie “The Day After Tomorrow,
The key here is that the ocean is not, even close, to a some static tub of water. It has currents within it that move up and down and transport north and south and east and west. I was fortunate once to take part in a research cruise in the North Atlantic tracing packets of water as they moved through the ocean water's water column. We were looking at what is called the NADW or North Atlantic Deep Water formation in which water in a "stream" if you will, travels up through the water column, contacts the atmosphere and then cools and sinks to the bottom of the Atlantic and then turns around and rises back up. It's a pretty cool effect but its' basically how the ocean works. It's a complex 3-dimensional system. Not a static bathtub. We were able to find packets of water deep in the Atlantic that contained gases that were human-made in a ratio that existed in the atmosphere maybe 5 or so years ago. Meaning that water was once at the surface.
I did not take a meteorlogy course but I did get to work in the measurement of atmospheric gases interacting with oceans and estuaries.
Which is why I support my points with actual citations.
The occurrence of new records, new extremes, at BOTH poles has significance, particularly when overlain on the steady rise of global temperatures over the last century.
Hot poles: Antarctica, Arctic 70 and 50 degrees above normal
Parts of Antarctica Friday hit 70 degrees warmer than normal. At the same time parts of the Arctic were 50 degrees warmer than normal. Scientists are stunned.
