Re: [geo] Re: nuclear winter, from the archives

2012-09-30 Thread Russell Seitz
The empirical fate of smoke from fires on the ground is a more complex matter than simply pasting it into a model's vertical divisions - when it comes to vertical transport , the models in question rely more on the taste of those programming them than natural history. This is an important fai

Re: [geo] Re: nuclear winter, from the archives

2012-09-30 Thread Andrew Lockley
"Geoengineering FIPC" > Sent: Sunday, September 30, 2012 1:54:45 PM > > > Subject: Re: [geo] Re: nuclear winter, from the archives > > Dear Albert, > > The way that nuclear attacks could change climate is because of the smoke > from the fires they would st

Re: [geo] Re: nuclear winter, from the archives

2012-09-30 Thread euggordon
all over the place. -gene - Original Message - From: "Alan Robock" To: "Veli Albert Kallio" Cc: "Geoengineering FIPC" Sent: Sunday, September 30, 2012 1:54:45 PM Subject: Re: [geo] Re: nuclear winter, from the archives Dear Albert, The

Re: [geo] Re: nuclear winter, from the archives

2012-09-30 Thread Alan Robock
evidence of them dying in heat, or lack of rain, would these measures be agreeable by rise in cesium and iodine. /Regards,/ *Albert * Date: Thu, 27 Sep 2012 15:13:55 -0400 Subject: Re: [geo] Re: nuclear winter, from

Re: [geo] Re: nuclear winter, from the archives

2012-09-30 Thread Mike MacCracken
immediate threat to > ecosystems and evidence of them dying in heat, or lack of rain, would these > measures be agreeable by rise in cesium and iodine. > > Regards, > > Albert > > > > > > Date: Thu, 27 Sep 2012 15:13:55 -0400 > Subject: Re: [geo] Re: nuclear

RE: [geo] Re: nuclear winter, from the archives

2012-09-30 Thread Veli Albert Kallio
and iodine. Regards, Albert Date: Thu, 27 Sep 2012 15:13:55 -0400 Subject: Re: [geo] Re: nuclear winter, from the archives From: mmacc...@comcast.net To: Geoengineering@googlegroups.com Re: [geo] Re: nuclear winter, from the archives Here’s my take on the exchange: It seems to me the co

Re: [geo] Re: nuclear winter, from the archives

2012-09-30 Thread Michael Fleming
"Emitted by natural and human sources, aerosols can directly influence climate by reflecting or absorbing the sun's radiation. The small particles also affect climate indirectly by seeding clouds and changing cloud properties, such as reflectivity. A new study, led by climate scientist Drew Shinde

Re: [geo] Re: nuclear winter, from the archives

2012-09-29 Thread Mike MacCracken
Here¹s my take on the exchange: It seems to me the core of the difference in the use and interpretation of a metaphor to describe scientific results‹and arguing over this can unfortunately obscure the significance of the scientific work. Russell is doing what scientists often do, namely taking wo

Re: [geo] Re: nuclear winter, from the archives

2012-09-27 Thread Fred Zimmerman
Does anyone care anymore what Carl Sagan wrote 30 years ago? Half the population is too young to even know who he was. I question whether anyone who was under 30 in 1986 even remembers anything about the early debates. Surely what is more important now is our current understanding of the climate

Re: [geo] Re: nuclear winter, from the archives

2012-09-26 Thread Russell Seitz
Dear Alan; You are trying to deny the elephant sized apple in the room-- your effort to redefine 'nuclear winter ' downward amonts to raw semantic aggresion in the light of how Carl Sagan made its quantitative meaning perfectly clear by telling a national television audience it was "precisel

Re: [geo] Re: nuclear winter, from the archives

2012-09-26 Thread Alan Robock
Dear Russell, You are comparing apples and oranges, or apples and something that is not even fruit. Are you doing this on purpose to fool readers or did you not even read the papers and understand what was done? Here are the differences: 1. TTAPS looked at three scenarios of global nuclear

Re: [geo] Re: nuclear winter, from the archives

2012-09-26 Thread Russell Seitz
Here are the time-temperature curves of the 1983 'nuclear winter ' model, and those of Robock et al. 2007 , superimposed on the same scale: http://s1098.photobucket.com/albums/g370/RussellSeitz/?action=view¤t=TTAPSROBOCK.jpg >> -- You received this message because you are subscribed to th

Re: [geo] Re: nuclear winter, from the archives

2012-09-26 Thread Russell Seitz
Alan's powers of revision continue to astonish. He writes : "It is amazing how these results have held up in the intervening 27 years." Really ? Has he forgotten the five order of magnitude difference in darkness between the "Apocalyptic predictions" Sagan adduced in 1984 , and the recent mode

Re: [geo] Re: nuclear winter, from the archives

2012-09-26 Thread rongretlarson
Andrew and list (cc Andy Rivkin) This is to urge replacement of your " controlled burns, bulldozers, etc. " in your final sentence, "Or would management of fire on the ground with controlled burns, bulldozers, etc . be better? " with " biopower, biofuels, biochar , etc : Controlled burns and