Re: diskusjon om global oppvarming

From: \\yvind Seland (oyvind.seland@geofysikk.uio.no)
Date: 25-06-01


Karsten Johanse skreiv:

>Denne teoriens innvendinger mot at menneskelige utslipp påvirker
>drivhuseffekten og mot at drivhuseffekten
>påvirker klimaet er de første jeg har sett som
>virker noenlunde plausible

Det er den kanskje, men det er ein del alvorlege svakheter.

>Howw could so many scientists miss out on this critical bit of
>information
>as Essenhigh believes? He said a National Academy of Sciences report
>on
>carbon dioxide levels that was published in 1977 omitted information
>about20
>water as a gas and identified it only as vapor, which means condensed
>water or cloud,

"Water vapor" = vassdamp = vatn i gassfase, ikkje condensed water

>Essenhigh attributes the current reported rise in global temperatures to
>a
>natural cycle of warming and cooling.

Teoretisk mogleg, men CO2 konsentrasjonen er no 360 ppm, ikkje
300 ppm som han refererer til i ein tidlegare syklus.

>As the ice cap melts, the earth warms, until the Arctic Ocean opens
>again Once enough water is available by evaporation from the ocean into
>the atmosphere, snows can begin to replenish the ice cap. At that point,
>the Arctic ice begins to expand, the global temperature can then start to
>reverse, and the earth can start re-entry to a new ice age.

Denne teorien er kanskje ny. For å finne støtte må nokon
ta sedimentprøver i Nordishavet.
>But he maintains his evaluations
>represent an improvement on those of the majority opinion, because they
>are logically
>rigorous and includes water vapor as a far more significant factor than
>in other studies.

Det er leit at han ikkje har spurt nokon om (mis)forståinga
hans av ordet "vapor" før han funderte meir på emnet.

Øyvind Seland



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