Tuesday, September 26, 2006 ... Français/Deutsch/Español/Česky/Japanese/Related posts from blogosphere

Southern hemisphere ignores global warming



Spencer and Christy have updated their tools to calculate the tropospheric temperatures between 1979 and the present era from their and NASA's satellite data to a new version 6.0 beta (readme file). Update: they would return to v5.2 in December 2006. The three graphs above show the global average, the Northern Hemisphere, and the Southern Hemisphere. This upgrade is also discussed by Steve McIntyre.

If you look at the third graph, you see that there was no warming on the Southern Hemisphere in the last 25 years even though the "global warming theory" and the corresponding models are predicting even faster rise of the tropospheric temperatures than for the surface temperatures. The decadal trend is quantitatively around 0.05 degrees which is noise whose sign can change almost instantly.



Normally, I would think that one should conclude that according to the observations, there is no discernible recent warming on the Southern Hemisphere, and an experimental refutation of a far-reaching hypothesis by a whole hemisphere is a good enough reason to avoid the adjective "global" for the observed warming.

Of course, the proponents of the "global warming theory" will use a different logic. The troposphere of the Southern Hemisphere is bribed by the evil oil corporations, and even if it were not, the data from the Southern Hemisphere can't diminish the perfect consensus of all the hemispheres of our blue planet: the debate is over. All the hemispheres of our planet decide equally about the catastrophic global warming, especially the Northern Hemisphere that shows that the warming is truly global and truly cataclysmic. Be worried, be very worried. ;-)




Hansen et al.

James Hansen, one of the fathers of the "global warming theory", has a new paper. When Hansen writes a paper, the media immediately publish hundreds of articles. The present temperatures are warmest in 12,000 or one million years, depending on the source. ;-)

However, when you open their paper, you see that it looks like one of these jokes propagating through the blogosphere and the authors are kind of comedians. First of all, most of the paper is dedicated to not-too-substantiated arguments with Michael Crichton. Michael Crichton stated in "State of Fear" as well as the U.S. Congress that Hansen's predictions from a 1988 testimony were wrong by 300 percent: a calculation based on a particular choice of time period and scenarios. Hansen then proposed three scenarios - "A,B,C" - how the temperatures would rise. "A" is a catastrophe in which no action is taken and the emissions continue to rise. "B" involves a peaceful limit in which emissions stabilize around 2000 and the warming is smaller. "C" is the scenario assuming drastic cuts of CO2 emissions.

The result as we know it in 2006? The reality essentially followed the temperatures of the scenario "C" even though the CO2 emissions continued to rise just like in the scenario "A". More details are summarized by Willis E who discusses the content of the figure 2 of the new Hansen paper. Isn't it enough to admit that Hansen was just wrong? If it is not enough, what kind of wrong prediction does he have to make in order for us to know that he has made an error? I just can't understand it.

The new paper contains even crazier assertions - e.g. the present temperature is probably the maximum temperature in the last 12,000 or one million years. This is probably based on the graph 5 on the bottom of page 5 (or 14291) and this graph's data is taken from a completely different paper written by very different authors: Hansen's only role is to hype and politicize their numbers. You see in that graph that since 1870, the oceans' surface temperature was more or less constant and the previous temperature probably can't be trusted, especially not the relative vertical shift of the graph in comparison with the current temperatures.

Even more amusingly, the paper is filled with a lot of completely off-topic comments that indicate that Hansen et al. are unable to focus on rational thinking. When I was reading one of the last sentences, I started to laugh loudly. Hansen et al. criticize the "engineering fixes" of the global climate recently discussed by Paul J. Crutzen, the 1995 Nobel prize winner for chemistry, and Ralph Cicerone, the current president of the National Academy of Sciences. Hansen says that these fixes are "dangerous" because they could diminish the efforts to reduce the CO2 emissions.

That's very funny because this is, indeed, exactly the purpose of these papers - to propose more efficient methods than the most stupid method you can imagine for the hypothetical case that we would ever need to regulate the global climate. The papers are indeed intended to diminish the role of the most uncultivated proposals how to fight with the hypothetical "climate change". As Hansen explains, that's exactly his problem with those papers. ;-)

It is very clear that the paper was only written in order to misinterpret another paper, draw media attention (which is guaranteed with Hansen), and make a purely political statement about the programs that are beginning to supersede the naive carbon dioxide cuts - political statements that have nothing do with science - in a scientific journal.

Steve McIntyre and Ross McKitrick's comments on the paper are here. Steve has made a much more detailed analysis later. Hansen's reasoning is not too unsimilar to the reasoning of Quantoken. :-)

Incidentally, Crutzen's proposed technology involves artificial volcanos. A major natural volcano eruption can cause 0.2-0.5 degrees of cooling over 2-3 years. Using the favorite technologies of Hansen and Gore - namely stifling the civilization - such a cooling would cost tens of trillions of dollars or many thousands of Virgin corporations. Al Gore would have to fly roughly millions of times to give his prayers for impressionable billionaires - because not all of them would decide in the same way as Branson - and these flights would probably overcompensate the cooling effect anyway. ;-)

Other popular texts about the climate on The Reference Frame

Add to del.icio.us Digg this Add to reddit

snail feedback (6) :


reader Leucipo said...

So, do you think that the plots you show here are all the three just random fluctuations?


reader Lumo said...

Dear Leucipo,

they are certainly fluctuations but the answer to your question depends on what you mean by the adjective "random".

If your "random" means completely uncontrolled independent numbers from a random generator that have never any pattern or a rational justification, then the answer is No, they are not random.

If your "random" means that most of these graphs can't be understood by one universal overarching principle encoded in two words with a simple attribution, then my answer is Yes, they are random and we not only think so, we can see it.

There are aspects of the graphs that have a reason. For example, the 1998 peak is El-Nino and one can study the microscopic details about it and perhaps even the effects that caused it.

The color of the noise can probably also be studied theoretically although people don't dedicate too much effort to this important question especially because the climate scientists' average math skills are just too low for such a task.

Some people surely know a more or less correct theory why the Southern Hemisphere is more constant recently, and this theory will be settled and accepted in the future. And maybe not: this thing can also be random on a macroscopic scale although it's definitely not random when you take all the local details and initial conditions into account.

There are many aspects of these graphs that have a rational explanation, but the noise currently dominates and who thinks that such graphs are dominated by two words, is extremely naive.

Best wishes
Lubos


reader nancy said...

You ridicule Hansen's criticism of the "engineering fixes" by Paul J. Crutzen. In your last paragraph you motivate why the proposed technology is a much better option than widely applying knowledge.

So, an artifical volcano could cause cooling for a bit, but what has humanity learnt from it? It sounds a bit like satisfying hunger vs nutrition.


reader Lumo said...

Dear Nancy,

I thought that the goal was to prevent global warming instead of learning something out of it, although - as I point out quite often - I have no doubts that people like you are supporting this madness for purely religious reasons and you confirmed it 100% here. Global warming is a new and very perverse sort of sectarian religion.

If one doesn't care about the actual temperatures and how to change them efficiently but he or she cares about learning, the answer is the following:

The best way to learn would indeed be to allow the environmental nutcases which unfortunately includes Dr. Hansen to do whatever they want with the world's economy and the freedoms of all people and companies in the world.

Such a decision would lead to quite a lesson. The only thing I am not sure about is whether the world would ever be able to recover from such brutal teaching methods.

Nutrition science, if you care, is a science about the correlations between the amount and type of food one one side and existence of hunger, diseases, and health on the other side. If you think that it is something else, then you don't know what nutrition is.

The primary goal of nutrition as a process is indeed to satisfy hunger.

Best
Lubos


reader Mike's America said...

It's amazing you have not been inundated with scathing comments from the enforcers of global warming zealotry.

Presenting any evidence that contradicts the global warming catechism brands you a heretic and a "denier" in their eyes, and some would bring you up for charges in a "Nuremberg" style war crimes trial.

Thanks for sharing the chart. I've been reading more on this particular aspect of the issue but had yet to see it.


reader inobe said...

global warming?

this is not true, the proof is there in front of us,the last ice age was northern, but its now melting or has been for thousands of years,the south pole will get colder, what could trigger such an event? one best guess points to the earths axis, the axis does change, we don't just rotate, the imaginary line (equator) will move which ever way (south or north) north is its logical direction as temperatures are rising there, monitoring the earths axis would unveil some interesting answers, it will explain why the grand canyon looks like niagra falls 300 years from now, it will also explain that the northern u.s. was the north pole 25,000 years ago, the axis will change slowly, so slow that we never know unless we keep documentation of it and make it to the avail for future reference!

i hope i made some sense, this is said simply, i really do not like to interfere with the science communities, this time only will i offer my opinion, thanks.
-inobe-