[lit-ideas] Re: Fwd: Re: global luke-warming -- addendum
- From: "Andy Amago" <aamago@xxxxxxxxxxxxx>
- To: lit-ideas@xxxxxxxxxxxxx
- Date: Sun, 16 Apr 2006 22:13:38 -0400
The scenario I've read about is that the melting glaciers will dilute the
salinity of key ocean areas, especially around Greenland, which will change the
underground rivers (they've only been discovered in the last 20 years or so)
that feed the oceans, thereby cooling the Gulf Stream and other major currents.
Once the ocean currents cool, especially the Gulf Stream, the moderate
temperatures experienced by Europe will begin to cool. The Gulf Stream
explains why areas that are on the same latitude have vastly different
climates. I have read that some islands in the Philippines are now under water
from rising sea levels (I posted on that). Venus is an example of a planet
with runaway greenhouse effect. No one is predicting that will happen here,
although Carl Sagan once mentioned in his show Cosmos that it can happen on
Earth too.
This link talks about the "Great Conveyor Belt," the way the ocean currents
work to keep the planet the way it is.
http://www.wunderground.com/education/abruptclimate.asp
----- Original Message -----
From: Paul Stone
To: lit-ideas@xxxxxxxxxxxxx
Sent: 4/16/2006 9:35:06 PM
Subject: [lit-ideas] Re: Fwd: Re: global luke-warming -- addendum
At 06:21 PM 4/15/2006, you wrote:
Paul, you're being silly. If the temperature rises
then thermocline boundary will drop deeper.
VERY slowly.
For back of envelope calculations you might as well assume 3800
meters deep container (the average depth of oceans) or
you have to explain where all the extra solar energy
goes if you want to stick to your calculation.
You think that ALL the water in the whole world is going to rise to 30 C? Do
you know how many brazillian joules of energy you would need to raise trillions
of trillions of gallons of water from 4 C to 30 C?
For the average sun energy of 1400 BTU/Sqft/day, at a depth of 3800 meters,
based on approx 70% earth coverage, it would take 75 YEARS to raise all that
water to 30 C and that's if EVERY SINGLE bit of energy from the sun is used to
heat the water. Now who's being silly? This is not a back of the envelope
calculation... I used an excel spreadsheet.
Also, based on 3800 metres depth, when the water DID reach 30 C, it would have
risen about 10.5 metres. If we can't move all our coastal cities -- or protect
them in [absolute impossible worst case scenario] 75 years, then we deserve to
be drowned. Can you imagine how GREAT the swimming would be though?
Incidentally, RIGHT now, the 1400 BTU/sqft/day is happening, why don't you
think that the oceans are boiling over? Why has only the surface temperature,
ONLY in really hot places only risen about 2 or 3 degrees in the past 100
years? Where's all that heat going? Hmm... let me see...
radiating into the night,
paul
_________________
[insert pithy quote here]
Paul Stone
pas@xxxxxxxx
Leamington, ON. Canada
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