Dårligt nyt til dommedagsprofeter

Den postmodernistiske arvesynd har fået endnu et skud for boven. Fra JP i dag:

Ny dansk forskning viser, at klimaet påvirkes af Jordens magnetfelt. Resultatet kan ifølge forskerne kun forklares med kontroversiel klimamodel, som nedtoner CO2's betydning for den globale opvarmning.

Så selv om det ikke betyder, at vi ikke oplever en temperaturstigning, så understreger det vigtigheden, af at ikke spilde penge på noget som alligevel ikke hjælper.
Og i øvrigt ikke bruge pengene, før vi ved konkret om vandstanden stiger betragteligt, hvilket man ikke ved i dag, Professor Nils Axel Mörner, tidligere leder Palæogeofysisk og geodynamisk center ved Stockholm Universitet:

You have to look at that in a lot of different ways. That is what I have done in a lot of different papers, so we can confine ourselves to the short story here. One way is to look at the global picture, to try to find the essence of what is going on. And then we can see that the sea level was indeed rising, from, let us say, 1850 to 1930-40. And that rise had a rate in the order of 1 millimeter per year. Not more. 1.1 is the exact figure. And we can check that, because Holland is a subsiding area; it has been subsiding for many millions of years; and Sweden, after the last Ice Age, was uplifted. So if you balance those, there is only one solution, and it will be this figure.

That ended in 1940, and there had been no rise until 1970; and then we can come into the debate here on what is going on, and we have to go to satellite altimetry, and I will return to that. But before doing that: There's another way of checking it, because if the radius of the Earth increases, because sea level is rising, then immediately the Earth's rate of rotation would slow down. That is a physical law, right? You have it in figure-skating: when they rotate very fast, the arms are close to the body; and then when they increase the radius, by putting out their arms, they stop by themsel-ves. So you can look at the rotation and the same comes up: Yes, it might be 1.1 mm per year, but absolutely not more. It could be less, because there could be other factors affecting the Earth, but it certainly could not be more. Absolutely not! Again, it's a matter of physics.

So, we have this 1 mm per year up to 1930, by observation, and we have it by rotation recording. So we go with those two. They go up and down, but there's no trend.

Den nye opdagelse, som nævnt i JP, er en viderebyggelse på en gammel teori af fysiker Henrik Svensmark fra DTU Space, som nu er undersøgt af to geofysikere, Mads Faurschou Knudsen, fra Geologisk Institut, Aarhus Universitet og geofysiker Peter Riisager fra De Nationale Geologiske Undersøgelser for Danmark og Grønland (GEUS).

De har:

Ved at sammenligne en model for Jordens forhistoriske magnetfelt med klimadata fra stalagmitter i drypstenshuler i Kina og Oman har forskerne afsløret, at nedbørsmængden i troperne er blevet påvirket af ændringer i Jordens magnetfelt gennem de sidste 5.000 år.

Resultatet kaster en bombe ned i den nuværende klimadebat, for den understøtter en kontroversiel teori om, at klimaet i høj grad styres af den kosmiske stråling, der strømmer ind i Jordens atmosfære fra rummet.

Så dommedag er igen aflyst på ubestemt tid, ihvertfald er den ikke noget, som vi nødvendigvis kan gøre særligt meget ved.
I hvert fald skal vi bruge pengene et sted, hvor det overlapper til andre hensyn.