Drivhuseffekt anno 1948

Global warming, 1948 style [Iain Murray]

A scientist friend discovered an article from 1948 entitled “The Present Climatic Fluctuation.” Written by Professor Hans Ahlmann of the University of Stockholm, it begins:

The present climatic fluctuation has been discussed since the 1920’s almost exclusively in scientific circles, although it has recently become a subject of more than academic interest…Ordinary people are beginning to realize that something has happened and is happening which is of great interest to themselves. The last dry summer, which transformed large parts of Western Europe into a virtual steppe, increased this interest and also caused anxiety, though this drought cannot be said with any certainty to belong to the present climatic fluctuation.

Sound familiar? All that is missing is adocumentary by Thomas E Dewey on the subject. Anyway, Ahlmann documents rapidly rising temperatures, glaciers melting like crazy, atmospheric circulation changes, species shifting, sea level rise, and so on from all around the world. But he concludes:

If we find in the Antarctic similar evidence of the present climatic fluctuation as has been found in other parts of the world, we shall be justified in concluding that the present fluctuation is a world-wode phenomenon and probably the result of variations in solar activity which, slow as they may be to take effect, are actually resulting in an improvement in the climate of our world.

How times change!

The Corner

7 Kommentarer

  1. Man kan læse om hvorledes historien bag dette rent faktisk forholder sig, på “The history of Global warming” siden her: http://www.aip.org/history/climate/index.html, som er skrevet af Dr. Spencer R. Weart Direktøren for centeret for fysikkens historie ved det amerikanske institut for fysik ved Collage Park i Maryland.

    Faktisk var Ahlmann slet ikke på vildspor, men man “glemte” hans opdagelser, da 1940-1970 ikke havde en opadgående temperatur-kurve, bla. grundet stor udledning af sulfat aerosoler (Det der blev grunden til syreregn). En såkaldt “dimming” effekt, som faktisk for nyligt blev foreslået som midlertidig løsning på den aktuelle drivhuseffekt – se: http://www.commondreams.org/headlines06/0731-05.htm

  2. Hold kæft hvor den historie bare stinker langt væk af fake “a scientist friend of mine” – hvem?

    “discovered” – hvor?

  3. Marie,

    Det skulle ikke undre mig om han har læst indledningen til Wearts site, og syntes at dette var en “god en” at forvirre folk med.

  4. Lige til oplysning: hvis der er flere links i kommentarerne ryger de i mit spam-filter og skal lige godkendes først! Jeg censurerer kun rigtig spam fra – ellers ikke 😀

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