Re: [Paddlewise] Thank you global warming

   I'm not an atmospheric scientist, and don't even play one
   on TV. I can't prove or disprove GW. There is interesting
   anecdotal evidence out there. Glacier National Park in Montana
   has all but lost it's glaciers in 100 years. The ice cap on
   Mt. Kilimanjaro is disappearing rapidly. Randall Washburn (spelling
   not guaranteed) documented receding glaciers by photography from
   the air. I'm told that polar bears are having difficulty making a living
   eating seals due to a diminishing Arctic ice pack. The Sahara desert
   grows across the African continent, causing native peoples to move. This
   doesn't prove GW. But it sure makes my ears perk up. I've already found
   a bull elk in my yard. I'm not ready for a polar bear.

   BRC



Quoting Dave Kruger <kdruger_at_pacifier.com>:

> We will never have any "proof," in the classic sense, that CO2 and  
> other greenhouse gases are the direct cause of GW, for this  
> fundamental reason: you can't purposely dump a lot of CO2 (or  
> similar) into the atmosphere to see what happens, and then take it  
> out to see if the effect is reversed.
>
> All of the evidence is correlative, and it will always be thus.   
> Because there is no comparable period in traceable geologic history  
> when CO2 levels rose as high as they are now, we do not even have a  
> second example that looks like what we are experiencing now.  We are  
> stuck depending on the skills, ethics, and talents of geophysical  
> and atmospheric science experts, and their models.
***************************************************************************
PaddleWise Paddling Mailing List - Any opinions or suggestions expressed
here are solely those of the writer(s). You must assume the entire
responsibility for reliance upon them. All postings copyright the author.
Submissions:     PaddleWise_at_PaddleWise.net
Subscriptions:   PaddleWise-request_at_PaddleWise.net
Website:         http://www.paddlewise.net/
***************************************************************************