Message-ID: <4ZSpxJq00VcJE8jk4P@andrew.cmu.edu>
Reply-To: space+@Andrew.CMU.EDU
From: space-request+@Andrew.CMU.EDU
To: space+@Andrew.CMU.EDU
Date: Tue,  5 Dec 89 01:25:26 -0500 (EST)
Subject: SPACE Digest V10 #306

SPACE Digest                                     Volume 10 : Issue 306

Today's Topics:
	 Re: Greenhouse Effect (was NASA Headline News 11/29)
	       Payload Status for 12/04/89 (Forwarded)
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Date:     Mon, 4 Dec 89 9:39:57 CST
From: Will Martin <wmartin@STL-06SIMA.ARMY.MIL>
Subject:  Re: Greenhouse Effect (was NASA Headline News 11/29)

>James Hansen, a researcher at NASA's Institute for Space Studies, 
>says major climate changes predicted from global warming are 
>being delayed due to less use of chloroflorocarbon gases.  Hansen 
>says in an article in the Journal of Geophysical Research, that 
>if CFC production had not been cut sharply beginning in 1974, the 
>heating of the Earth from the greenhouse effect would occur in 20 
>years rather than in 40 years as most theories now predict.

I seem to be confused. I thought the ozone depletion due to
chloroflurocarbons was the cause of increased levels of ultraviolet
radiation making it to the surface, thus producing higher levels of skin
cancer and related effects, and didn't have anything to do with global
warming.

The global warming was, I thought, due to increased carbon dioxide in
the atmosphere due to (among other things) increased burning of fossil
fuels and the depletion of the plant life (rainforests and phytoplankton)
that convert that carbon dioxide back into free oxygen and plant material.

So what do CFC gasses have to do with global warming? If the ozone also
acts like carbon dioxide to trap heat in the atmosphere, the use of CFCs
that destroy ozone would *reduce* global warming, not increase it.

Regards, Will
wmartin@st-louis-emh2.army.mil OR wmartin@stl-06sima.army.mil

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Date: 4 Dec 89 23:03:17 GMT
From: trident.arc.nasa.gov!yee@ames.arc.nasa.gov  (Peter E. Yee)
Subject: Payload Status for 12/04/89 (Forwarded)

Daily Status/KSC Payload Management and Operations 12-04-89
       
         
- STS-31R HST (at VPF) -
      
The GST-8 test ran through the weekend.  The only problem 
encountered was yesterday with low humidity from the ECS unit.
The humidity went below 25% and was documented.  With the 
concurrence of LMSC testing continued.  Humidity never exceeded
the lower limit of 15%.
        
- STS-32R SYNCOM (at Pad A) -
       
Transfer of SYNCOM into the orbiter was completed on Friday.  All
cabling and configuring of SYNCOM in the orbiter was completed 
over the weekend.  There were a few delays to the work going on 
in the PCR due to low humidity.  This morning constraints are being  
worked off to allow the beginning of the Interface Verification  
Test (IVT).
       
- STS-35 ASTRO-1/BBXRT (at O&C) -
        
IPS retest continues.  Completed the cruciform installation on  
Saturday.  A defective seal on HUT pump was discovered Sunday.  
This seal will be repaired off line this morning.  Plan to pick
up with PAR extend this morning. 
       
- STS-40 SLS-1 (at O&C) -
        
Rack mod work continues on rack 3, 5, 12, and 7.  EPSP 
installation was completed on rack 7 and panel installation is 
complete on rack 12.   
       
- STS-42 IML (at O&C) -
      
No activity.

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End of SPACE Digest V10 #306
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