[ RadSafe ] Climate change
jjcohen at prodigy.net
Tue Feb 26 16:39:04 CST 2013
Although the topic of climate change is of marginal relevance on radsafe, I
thought, correctly, that it might stir up some interest.
It might also be noted that after collision with a major asteroid, there
will continue to be a climate on earth, or what's left of it
----- Original Message -----
From: "Johansen, Kjell" <Kjell.Johansen at nexteraenergy.com>
To: <radsafe at health.phys.iit.edu>
Sent: Tuesday, February 26, 2013 10:40 AM
Subject: Re: [ RadSafe ] Climate change
> With regard to the 4 previously mentioned options regarding climate change
> [warmer, colder, no change, or being hit by an asteroid], I am in the camp
> that has come to the conclusion that the climate will move to higher
> temperatures. [We were discussing this back in the '70s in my meteorology
> and oceanography classes at the University of Michigan and those profs
> were smart guys.] Any change in the solar output or axis wobble will make
> some small changes. Continuing to pump greenhouse gases (methane, CFCs,
> and carbon dioxide) into the atmosphere increases the heat containing
> capacity of the atmosphere. (Ok, to be technically correct, you are
> increasing the capacity of the atmosphere to capture outgoing radiation
> and radiating back to the earth as heat. But, in the overall picture, it
> results in an increase in the earth's temperature.) By analogy with solar
> output and axis wobble, compare the water content of an 8-oz glass to that
> of a 16-oz glass. No matter how the rate at
> which you fill the glasses, the 16-oz glass will always contain more
> water. Therefore, more greenhouse gases, higher temperatures.
> Look at the records in the oceanic sediment cores and the ice cores. When
> the greenhouse gases CO2 and methane concentrations are high, so are all
> of the geochemical markers for increased temperature, ie, the O18/O16
> ratios, etc. To deny any link between greenhouse gases and the average
> earth temperature is an extreme case of reverse hubris.
> Too many people who regularly contribute to RADSAFE tend to dismiss the
> data which lead climatologists to be concerned about higher earth
> temperatures because it does not fit their already formed conclusions.
> Being flippant is not worthy response to scientific concerns.
> As always, these words are my own and I do not intend to formulate any
> official position for my employer.
> Kjell Johansen, PhD
> Nuclear Chemistry Analyst
> kjell.johansen at NextERAEnergy.com
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