Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts

Saturday, April 12, 2008

Positive feedback in Global warming

Over at Coyote blog there is an important post, highlighting the issue of positive feedback which is at the core of the alarmist global warming scare.

Interestingly, the key to understanding this issue of the amount of warming does not actually lie in greenhouse gas theory. Most scientists, skeptics and alarmists alike, peg the warming directly from CO2 at between 0.3 and 1.0 degrees Celsius for a doubling in CO2 levels ... If this greenhouse gas warming was the only phenomenon at work, we would expect man-made warming over the next century even using the most dire assumptions to be less than 1C, or about the same amount we have seen (non-catastrophically) over the last century.


As I said before, man-produce greenhouse gases (CO2) may produce a small, minuscule, amount of warming, which is insignificant, quantitatively, among the natural variations. The catastrophic predictions aren't based on this minuscule warming. They are based on "positive feedback loops".

This theory hypothesizes that small changes in temperature from greenhouse gas increases would be multiplied 3,4,5 times or more by positive feedback effects, from changes in atmospheric water vapor to changing surface albedo.

Let me emphasize again: The catastrophe results not from greenhouse gas theory, but from the theory of extreme climactic positive feedback. In a large sense, all the debate in the media is about the wrong thing! When was the last time you saw the words "positive feedback" in a media article about climate?

Now, this positive feedback has absolutely no scientific base or proof, it's just a guess based on nothing - well, based on the ideological bias of the"scientists". It is not based on scientific data or theory.

Here is what Christopher Monckton writes about it:

The feedback factor f accounts for at least two-thirds of all radiative forcing in IPCC (2007); yet it is not expressly quantified, and no “Level Of Scientific Understanding” is assigned either to f or to the two variables b and κ upon which it is dependent....

Indeed, in IPCC (2007) the stated values for the feedbacks that account for more than two-thirds of humankind’s imagined effect on global temperatures are taken from a single paper. The value of the coefficient z in the CO2 forcing equation likewise depends on only one paper. The implicit value of the crucial parameter κ depends upon only two papers, one of which had been written by a lead author of the chapter in question, and neither of which provides any theoretical or empirical justification for the IPCC’s chosen value. The notion that the IPCC has drawn on thousands of published, peer-reviewed papers to support its central estimates for the variables from which climate sensitivity is calculated is not supported by the evidence.


As I said, there is absolutely no scientific basis to the alarmist scare mongering. The IPCC, including the dubious positive feedbacks, predicts (i.e. guesses) a rise of 2-4 deg C in temperature, and 60-100 cm in sea levels for the year 2100. Even these predictions aren't yet catastrophic.

The chief scare mongers, Al Gore and Dr. James Hanson speak of 8-10 degrees, 10 m sea level rise and "tipping points" within 30 years. This scare mongering is based on absolutely nothing, not even on the exaggerated IPCC numbers.



Wednesday, April 9, 2008

Ideological bias in scientists

The article "Usufruct & the Gorilla" by main climate alarmist scientist Dr. James E. Hansen is several months old, but worth mentioning and remembering.

An excrept:


Make no doubt, however, if tipping points are passed, if we, in effect, destroy Creation, passing on to our children, grandchildren, and the unborn a situation out of their control, the contrarians who work to deny and confuse will not be the principal culprits. The contrarians will be remembered as court jesters. There is no point to joust with court jesters. They will always be present. They will continue to entertain even if the Titanic begins to take on water. Their role and consequence is only as a diversion from what is important. The real deal is this: the ‘royalty’ controlling the court, the ones with the power, the ones with the ability to make a difference, withthe ability to change our course, the ones who will live in infamy if we pass the tipping points, are the captains of industry, CEOs in fossil fuel companies such as EXXON/Mobil, automobile manufacturers, utilities, all of the leaders who have placed short-term profit above the fate of the planet and the well-being of our children. The court jesters are their jesters, occasionally paid for services, and more substantively supported by the captains’ disinformation campaigns.


This reveals a deep anti-capitalist, anti-human, vile ideology or mentality.
The "captains of industry" are people just like you and me, nay, they are more able and talented than average, and they provide us with all the food, clothes and goods we need for living. They provide what we need and want.

Now, scientists, like all people, are entiteled to their ideology, opinions and biases. But they should not try to let their biases influence their science, or to present their biases as science. Hansen is oblivious to the fact that what he has uttered above is the expression of his ideological bias. Two senteces later he writes:
I am puzzled by views expressed by some conservatives, .... It is a bit
disconcerting as I come from a moderately conservative state, and I consider myself a moderate conservative in most ways.
It's puzzling to me that he doesn't understand the deep ideological (anti-capitalist) nature of his rant, and sees it as normal, uncontroversial, self evident opinions.
I think that the ideological roots of the main AGW alarmist need to be exposed.

Friday, August 24, 2007

Joseph Romm, modern scientist

Joseph Romm is a Ph.D in physics from M.I.T. "Dr. Joseph Romm is a leading expert on hydrogen, fuel cells, and advanced transportation technologies."

Here is a link to Joseph Romm's bio. Here is a link to his blog.

Read the bio and you will see a frequent theme: Joseph Romm has made a big career in ideologically motivated activism, has written tons of words (for the environment), has published tons of books and articles.

Has he invented any useful device ? Is he doing any scientific work ? Any tangible, physical gadget? Any real solution ? Has he worked in some team that produced tangible solutions? Has he advanced theoretical knowledge ?
Nope, just public relations and ideological advocacy. (Also government administration jobs). He has produced words, words, words.

Words matter, writing is a respectable profession. But for a scientist, for a Ph.D. holder in physics from M.I.T. this is disappointing. But this is typical of today's "scientists".

The truth is - real scientists, real, ground breaking, scientists and engineers are a very rare breed. Most of the people calling themselves "scientists" and parading impressive titles are nothing of the sort.

(If he has produced something useful besides words I apologize. It wasn't mentioned in his bio.)