[pct-l] Global Warming

[dude@fastmail.ca (dude)]

I am fortunate enough to climb with a guy who is older than I am and 
has a TON of mountaineering experience.  We recently climbed Orizaba 
in Mexico (3rd highest in North America).  He told me that the 
glacier on Orizaba was much closer to the climbers' hut 20 years ago 
when he first started going up there.  

There is no time to "wait for all the evedence to come in" like some 
legislators claim.  Global warming happens.


> 
> In a message dated 6/6/02 2:40:56 AM, Hiker97@aol.com writes:
> 
> << I hear that the ice fields that Sir Edmond Hilary crossed out
> of his Mt. Everest base camp in 1953 are now a two hour walk from
> his original base camp.  Seems the ice has retreated that far
> since 1953.  I guess global warming is really real.  I wonder what
> the snow levels and other indicators would be like in the Sierras
> today compared to the early 1950s or John Muir's days in the Range
> of Light.  Happy trails, Switchback
> 
>>> 
> 
> I climbed a mountain in Canada once and took a picture from the
> summit with the same view as one taken there in 1920. The view is
> of glaciers leading up to the Columbia Icefield. Above a certain
> line not a thing has changed -- same snowfields, same bare spots,
> same glaciers. Below that line vast amounts of glacier are
> completely gone. My conclusion? The mean annual freezing level has
> risen several thousand feet since the early 1900s. Why? The debate
> rages on, but there is much more CO2 around now than then So why
> do people think that trees have anything to do with global
> warming? Isn't it true that the amount of CO2 it absorbs thru
> photosynthesis is equal to the amount of CO2 that it eventually
> releases thru decay/burning? The tree doesn't create or destroy
> the CO2, it simply borrows it--- OOPS wrong chat list - thought
> this was the Photosynthesis = Combustion Technologies chat list
> 
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