[ RadSafe ] The Great Global Warming Swindle Swindle

[Dukelow, James S Jr]

Kai Kaletsch and Frank Helk wrote:
-----Original Message-----
From: radsafe-bounces at radlab.nl on behalf of Frank Helk
Sent: Tue 3/20/2007 1:47 AM
To: Kai Kaletsch
Cc: radsafe at radlab.nl
Subject: Re: [ RadSafe ] The Great Global Warming Swindle Swindle
 
Hi Kai,

On Mon, 19 Mar 2007 09:14:31 -0600, Kai Kaletsch wrote:

>I was wondering why all the data presented stopped in the 1980s. It turns 
>out that was when the data sets were discredited. It turns out that neither 
>solar activity or CO2 do a very good job of explaining the cooling observed 
>after 1940 [ see http://www.junkscience.com/Greenhouse/aerosol.gif ]. One 
>hypothesis is that pollution was blocking the sun. --- So much for the 
>assertion that we puny humans can't possibly affect the climate.

I have taken a deep look at the mentioned image ... and the conclusion is relative
clear. As far as I remeber the atmospheric nuclear weapons tests took place 
from the early 40's to about the mid 70's, and definitely ended about 1980.

The period of retarded warming perfectly fits into that period, which could strongly 
explain that period as a mild "nuclear winter".

    <snip>

=======================

A number of years ago, I read the suggestion that atmospheric testing was related to the 1940-1970 cooling because of the impact on stratospheric chemistry of the injection of K-85 from the explosions into the stratosphere -- note: a radiation connection.  The proposed mechanism was ionization caused by K-85 decay.

I was/am not able, at the time or now, to evaluate how realistic this suggestion is.  The other suggestion, which seems pretty reasonable, is that the cooling was caused by wartime and post-war tropospheric aerosols and that the clean air movement began removing aerosols and their cooling effect from the troposphere in the 60s, allowing the increasing concentrations of CO2 and other greenhouse gases incontested warming influence.

Best regards.

Jim Dukelow
Pacific Northwest National Laboratory
Richland, WA
jim.dukelow at pnl.gov

These comments are mine and have not been reviewed and/or approved by my management or by the U.S. Department of Energy.